Node

Data Commons represents node relations as directed edges between nodes, or properties. The name of the property is a label, while the value of the property may be a connected node. The Node API returns the property labels and values that are connected to the queried node. This is useful for finding connections between nodes of the Data Commons knowledge graph.

More specifically, this API can perform the following tasks:

  • Get all property labels associated with individual or multiple nodes.
  • Get the values of a property for individual or multiple nodes.
  • Get all connected nodes that are linked with individual or multiple nodes.

Source code

Request methods

The following are the methods available for this endpoint.

Method Description
fetch Fetch properties (or “arcs”) of specified nodes, by using a relation expression
fetch_property_labels Fetch property labels of specified nodes
fetch_property_values Fetch values of specified nodes and properties
fetch_all_classes Fetch the DCIDs and other properties of all nodes of Class type. This is useful for listing out all the entity types in the graph.
fetch_entity_names Look up the names of entities, in one or two languages, based on their DCIDs.
fetch_place_children Look up the names of direct child place entities (related by the containedInPlace property), based on entity DCIDs.
fetch_place_descendants Fetch the full graph of direct and indirect children of places (related by the containedInPlace property), based on their DCIDs.
fetch_place_parents Look up the names of direct parent place entities (related by the containedInPlace property), based on entity DCIDs.
fetch_place_ancestors Fetch the full graph of direct and indirect parents of places (related by the containedInPlace property), based on their DCIDs.

Response

The fetch_entity_names and fetch_place_* methods return a Python dictionary. All other request methods return a NodeResponse dataclass object. It looks like this:

{
  "data": {
    "NODE_DCID": {
      "arcs": {
        "LABEL": {
          "nodes": [
            ...
          ]
        }
        ...
      },
      "properties": [
        "VALUE",
      ],
    }
  }
  "nextToken": None
}

Response fields

Name Type Description
data object Data of the property label and value information, keyed by the queried nodes.
nextToken string A token used to query the next page of data, if all_pages is set to False in the query.

Response property methods

You can call the following methods on a NodeResponse object:

Method Description
to_dict Converts the dataclass to a Python dictionary. See Response formatting for details.
to_json Serializes the dataclass to a JSON string (using json.dumps()). See Response formatting for details.
nextToken Extracts the nextToken value from the response. See Pagination below for more details

fetch

Fetches properties (or “arcs”) of specified nodes, by using a relation expression.

Signature

fetch(node_dcids, expression, all_pages, next_token)

Input parameters

Name Type Description
node_dcids
Required
string or list of strings One or more DCIDs of the nodes to query.
expression
Required
string A relation expression, represented with symbols including arrow notation, that specifies the property (or properties) to query. For more details, see relation expressions. By using different relations, you can query node information in different ways, such as getting the edges and neighboring node values. Examples below show how to request this information for one or multiple nodes.
all_pages
Optional
bool Whether all data should be sent in the response. Defaults to True. Set to False to return paginated responses. See Pagination for details.
next_token
Optional
string If all_pages is set to False, set this to the next token returned by the previous response. Defaults to None. See Pagination for details.

Response

NodeResponse dataclass object

Examples

Example 1: Get all incoming property labels for a given node

This examples gets all incoming arc property labels, i.e. the property labels of attached nodes, for the node with DCID geoId/06 (California) by querying with the <- symbol. This returns just the property labels but not the property values.

Request:

client.node.fetch(node_dcids=["geoId/06"], expression="<-")

Response:

{
  "data": {
    "geoId/06": {
      "properties": [
        "affectedPlace",
        "containedInPlace",
        "location",
        "member",
        "overlapsWith"
      ]
    }
  }
}

Example 2: Get one (outgoing) property value for a given node

This example gets the value of the name property for a given node with DCID dc/03lw9rhpendw5 by querying the ->name symbol.

Request:

client.node.fetch(node_dcids=["dc/03lw9rhpendw5"], expression="->name")

Response:

{
  "data": {
    "dc/03lw9rhpendw5": {
      "arcs": {
        "name": {
          "nodes": [
            {
              "provenanceId": "dc/base/EIA_860",
              "value": "191 Peachtree Tower"
            }
          ]
        }
      }
    }
  }
}

Example 3: Get a list of all statistical variables

This example gets the list of all statistical variables in the knowledge graph, by fetching all nodes that are types of the class StatisticalVariable and using the <-typeOf symbol to express the incoming relationships. Also, because of the size of the response, it enables pagination to split up the response data into multiple calls.

Request:

client.node.fetch(node_dcids=["StatisticalVariable"], expression="<-typeOf", all_pages=False)

Response:

{
  "data": {
    "StatisticalVariable": {
      "arcs": {
        "typeOf": {
          "nodes": [
            {
              "dcid": "AggregateMax_MedianAcrossModels_DifferenceRelativeToBaseDate1990_Max_Temperature",
              "name": "Max Temperature (Difference Relative To Base Date): Relative To 1990, Highest Value, Median Across Models",
              "provenanceId": "dc/base/HumanReadableStatVars",
              "types": [
                "StatisticalVariable"
              ]
            },
            {
              "dcid": "AggregateMax_MedianAcrossModels_DifferenceRelativeToBaseDate2006To2020_Max_Temperature_RCP45",
              "name": "Max Temperature (Difference Relative To Base Date): Relative To Between 2006 And 2020, Based on RCP 4.5, Highest Value, Median Across Models",
              "provenanceId": "dc/base/HumanReadableStatVars",
              "types": [
                "StatisticalVariable"
              ]
            },
            {
              "dcid": "AggregateMax_MedianAcrossModels_DifferenceRelativeToBaseDate2006To2020_Max_Temperature_RCP85",
              "name": "Max Temperature (Difference Relative To Base Date): Relative To Between 2006 And 2020, Based on RCP 8.5, Highest Value, Median Across Models",
              "provenanceId": "dc/base/HumanReadableStatVars",
              "types": [
                "StatisticalVariable"
              ]
            },
            {
              "dcid": "AggregateMax_MedianAcrossModels_DifferenceRelativeToBaseDate2006_Max_Temperature_RCP45",
              "name": "Max Temperature (Difference Relative To Base Date): Relative To 2006, Based on RCP 4.5, Highest Value, Median Across Models",
              "provenanceId": "dc/base/HumanReadableStatVars",
              "types": [
                "StatisticalVariable"
              ]
            },
            {
              "dcid": "AggregateMax_MedianAcrossModels_DifferenceRelativeToBaseDate2006_Max_Temperature_RCP85",
              "name": "Max Temperature (Difference Relative To Base Date): Relative To 2006, Based on RCP 8.5, Highest Value, Median Across Models",
              "provenanceId": "dc/base/HumanReadableStatVars",
              "types": [
                "StatisticalVariable"
              ]
            },
            ...
            "nextToken": "H4sIAAAAAAAA/2zJsQ6CMBQFUHut9fp0MNcPcyBhf5CSNOlA4C38PT/AfGyx3xAebY82ex99az71aiWOtf6vUTdlpm8SCIF3gVngQ2AR+BRIgS+BJvAt8HMCAAD//wEAAP//522gCWgAAAA="
}

fetch_property_labels

Fetches only the labels of properties of specified nodes (or their attached nodes), without using relation expressions. This returns just the property labels but not the property values.

Signature

fetch_property_labels(node_dcids, out, all_pages, next_token)

Input parameters

Name Type Description
node_dcids
Required
string or list of strings See fetch for description.
out
Optional
bool Whether the edge is an outgoing (True) or incoming (False) arc. Defaults to outgoing (True).
all_pages
Optional
bool See fetch for description.
next_token
Optional
string See fetch for description.

Response

NodeResponse dataclass object

Examples

Example 1: Get all incoming property labels for a given node

Get all incoming arc property labels, i.e. the property labels that are used in attached nodes, of the node with DCID geoId/06 (California) by setting the out parameter to False. This is identical to example 1 of the fetch method.

Request:

client.node.fetch_property_labels(node_dcids=["geoId/06"], out=False)

Response:

{
  "data": {
    "geoId/06": {
      "properties": [
        "affectedPlace",
        "containedInPlace",
        "location",
        "member",
        "overlapsWith"
      ]
    }
  }
}

fetch_property_values

Fetches the values of specified properties of specified nodes (or their attached nodes), without using relation expressions.

Signature

fetch_property_values(node_dcids, properties, constraints, out, all_pages, next_token)

Input parameters

Name Type Description
node_dcids
Required
string or list of strings See fetch for description.
properties
Required
string or list of strings List of properties to query
constraints
Optional
string Additional filters, of the form {typeof:PROPERTY}.
out
Optional
bool See fetch_property_labels for description.
all_pages
Optional
bool See fetch for description.
next_token
Optional
string See fetch for description.

Response

NodeResponse dataclass object

Examples

Example 1: Get one (outgoing) property value for a given node

This example gets the name property for a given node with DCID dc/03lw9rhpendw5. This is identical to example 2 of the fetch method.

Request:

client.node.fetch_property_values(node_dcids=["dc/03lw9rhpendw5"], properties="name")

Response:

{
  "data": {
    "dc/03lw9rhpendw5": {
      "arcs": {
        "name": {
          "nodes": [
            {
              "provenanceId": "dc/base/EIA_860",
              "value": "191 Peachtree Tower"
            }
          ]
        }
      }
    }
  }
}

Example 2: Get multiple (outgoing) property values for multiple nodes

This example gets the name, latitude, and longitude values for nodes geoId/06085 and geoId/06087.

Request:

client.node.fetch_property_values(node_dcids=["geoId/06085", "geoId/06087"], properties=["name", "latitude", "longitude"])

Tip: This example is equivalent to client.node.fetch(node_dcids=["geoId/06085", "geoId/06087"], expression="->[name, latitude, longitude]").

Response:

{
  "data": {
    "geoId/06085": {
      "arcs": {
        "name": {
          "nodes": [
            {
              "provenanceId": "dc/base/WikidataOtherIdGeos",
              "value": "Santa Clara County"
            }
          ]
        },
        "latitude": {
          "nodes": [
            {
              "provenanceId": "dc/base/WikidataOtherIdGeos",
              "value": "37.221614"
            },
            {
              "provenanceId": "dc/base/WikidataOtherIdGeos",
              "value": "37.36"
            }
          ]
        },
        "longitude": {
          "nodes": [
            {
              "provenanceId": "dc/base/WikidataOtherIdGeos",
              "value": "-121.68954"
            },
            {
              "provenanceId": "dc/base/WikidataOtherIdGeos",
              "value": "-121.97"
            }
          ]
        }
      }
    },
    "geoId/06087": {
      "arcs": {
        "name": {
          "nodes": [
            {
              "provenanceId": "dc/base/WikidataOtherIdGeos",
              "value": "Santa Cruz County"
            }
          ]
        },
        "latitude": {
          "nodes": [
            {
              "provenanceId": "dc/base/WikidataOtherIdGeos",
              "value": "37.012347"
            },
            {
              "provenanceId": "dc/base/WikidataOtherIdGeos",
              "value": "37.03"
            }
          ]
        },
        "longitude": {
          "nodes": [
            {
              "provenanceId": "dc/base/WikidataOtherIdGeos",
              "value": "-122.007789"
            },
            {
              "provenanceId": "dc/base/WikidataOtherIdGeos",
              "value": "-122.01"
            }
          ]
        }
      }
    }
  }
}

Example 3: Get DCIDs of nodes of a specific type, with an incoming relation to a node

In this example, we use a filter expression to specify “all contained places in United States (DCID country/USA) of type State”.

Request:

client.node.fetch_property_values(node_dcids=["country/USA"], properties="containedInPlace+{typeOf:State}", out=False)

Tip: This example is equivalent to client.node.fetch(node_dcids="country/USA", expression="<-containedInPlace+{typeOf:State}").

Response:

{
  "data": {
    "country/USA": {
      "arcs": {
        "containedInPlace+": {
          "nodes": [
            {
              "dcid": "geoId/01",
              "name": "Alabama"
            },
            {
              "dcid": "geoId/02",
              "name": "Alaska"
            },
            {
              "dcid": "geoId/04",
              "name": "Arizona"
            },
            {
              "dcid": "geoId/05",
              "name": "Arkansas"
            },
            {
              "dcid": "geoId/06",
              "name": "California"
            },
            {
              "dcid": "geoId/08",
              "name": "Colorado"
            },
            {
              "dcid": "geoId/09",
              "name": "Connecticut"
            },
            {
              "dcid": "geoId/10",
              "name": "Delaware"
            },
            ...
        }
      }
    }
  }
}

fetch_all_classes

Fetches all nodes that are entity types, that is, have Class as their type.

Signature

fetch_all_classes(all_pages, next_token)

Input parameters

Name Type Description
all_pages
Optional
bool See fetch for description.
next_token
Optional
string See fetch for description.

Response

NodeResponse dataclass object.

Examples

Example 1: Fetch all classes, with pagination

This example sets all_pages to get a paginated response with a next_token value.

Request:

client.node.fetch_all_classes(all_pages=False)

Tip: This example is equivalent to client.node.fetch(node_dcids="Class", expression="<-typeOf", all_pages=False).

Response:

{
  "data": {
    "Class": {
      "arcs": {
        "typeOf": {
          "nodes": [
            {
              "dcid": "ACLGroup",
              "name": "ACLGroup",
              "provenanceId": "dc/base/BaseSchema",
              "types": [
                "Class"
              ]
            },
            {
              "dcid": "ACSEDChild",
              "name": "ACSEDChild",
              "provenanceId": "dc/base/BaseSchema",
              "types": [
                "Class"
              ]
            },
            {
              "dcid": "ACSEDParent",
              "name": "ACSEDParent",
              "provenanceId": "dc/base/BaseSchema",
              "types": [
                "Class"
              ]
            },
            {
              "dcid": "APIReference",
              "name": "APIReference",
              "provenanceId": "dc/base/BaseSchema",
              "types": [
                "Class"
              ]
            },
            {
              "dcid": "AboutPage",
              "name": "AboutPage",
              "provenanceId": "dc/base/BaseSchema",
              "types": [
                "Class"
              ]
            },
            {
              "dcid": "AcademicAssessmentEvent",
              "name": "AcademicAssessmentEvent",
              "provenanceId": "dc/base/BaseSchema",
              "types": [
                "Class"
              ]
            },
            {
              "dcid": "AcademicAssessmentTypeEnum",
              "name": "AcademicAssessmentTypeEnum",
              "provenanceId": "dc/base/BaseSchema",
              "types": [
                "Class"
              ]
            },
            {
              "dcid": "AcceptAction",
              "name": "AcceptAction",
              "provenanceId": "dc/base/BaseSchema",
              "types": [
                "Class"
              ]
            },
            {
              "dcid": "Accommodation",
              "name": "Accommodation",
              "provenanceId": "dc/base/BaseSchema",
              "types": [
                "Class"
              ]
            },
            ....
          ]
        }
      }
    }
  },
  "nextToken": "H4sIAAAAAAAA/yzHMQ5EQBjF8Z23O7PPRyH/yn20EmdQUCkko3F7kSh/MUUe96XWKOd1rPP2kg/FqU9DRhbyF/mH/Lgg/5GN3CAHcovc3QAAAP//AQAA//9hM3KVTgAAAA=="
}

fetch_entity_names

Fetches the names corresponding to entity DCIDs, in the selected language.

Signature

fetch_entity_names(entity_dcids,language,fallback_language)

Input parameters

Name Type Description
entity_dcids
Required
string or list of strings One or more DCIDs of entities whose names you want to look up.
language
Optional
string The ISO 639 2-letter code representing the language to be used in the response. If not specified, defaults to en(English).
fallback_language
Optional
string The ISO 639 2-letter code representing the language to be used in the response if the language specfied in the previous parameter is not available.

Response

Dictionary mapping each DCID to a dictionary with the mapped name and language.

Examples

Example 1: Fetch the names of several entity DCIDs in German

This example gets the German names of 3 different DCID entities (places): USA, Guatemala and Africa.

Request:

client.node.fetch_entity_names(entity_dcids=["africa", "country/GTM", "country/USA", "wikidataId/Q2608785"],
language="de")

Response:

{'africa': Name(value='Afrika', 
                language='de', 
                property='nameWithLanguage'),
 'country/GTM': Name(value='Guatemala',
                     language='de',
                     property='nameWithLanguage'),
 'country/USA': Name(value='Vereinigte Staaten',
                     language='de',
                     property='nameWithLanguage')}

fetch_place_children

Fetches the names, DCIDs, and types of direct child places of the selected place entities.

Signature

fetch_place_children(place_dcids, children_type, as_dict)

Input parameters

Name Type Description
place_dcids
Required
string or list of strings One or more place entities whose direct parents you want to look up.
children_type
Optional
string The type of the child entities to fetch, for example, Country, State, IPCCPlace_50. If not specified, fetches all child types. This option is useful for cases where the input place may have direct links from various entities, and you only want a specific entity type. For example, in the case of the United States, states, counties, and some cities are directly linked to the country/USA entity, while others or not; if you only want states, set this option to State.
as_dict
Optional
bool Whether to return the response as a dictionary mapping each input DCID to a dict of child entities (when set to True), or a dictionary mapping each input DCID to a list of child NodeResponse objects (when set to False). Defaults to True.

Response

Dependent on the setting of the as_dict parameter. See above for details.

Examples

Example 1: Fetch the direct children of a single place, as a dictionary

This example gets the DCIDs of all the direct children of the city of Paris. Note that several types are returned: AdministrativeArea, AdministrativeArea5, and Neighbourhood.

Request:

client.node.fetch_place_children(place_dcids=["nuts/FR101"])

Response:

(truncated)

{'nuts/FR101': [{'dcid': 'wikidataId/Q161741',
                 'name': '1st arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q163948',
                 'name': '10th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q169293',
                 'name': '11th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q171689',
                 'name': '12th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q175129',
                 'name': '13th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q1867640',
                 'name': 'neighborhood of Beaugrenelle',
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['Neighborhood']},
                {'dcid': 'wikidataId/Q187153',
                 'name': '14th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q191066',
                 'name': '15th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q194420',
                 'name': '16th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q197297',
                 'name': '17th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q200126',
                 'name': '18th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q204622',
                 'name': '19th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q20723084',
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['Neighborhood']},
                {'dcid': 'wikidataId/Q209549',
                 'name': '2nd arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q210720',
                 'name': '20th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q223140',
                 'name': '3rd arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q230127',
                 'name': '4th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q238723',
                 'name': '5th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q245546',
                 'name': '6th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q259463',
                 'name': '7th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q270230',
                 'name': '8th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q275118',
                 'name': '9th arrondissement of Paris',
                 'provenanceId': 'dc/base/WikidataOtherIdGeos',
                 'types': ['AdministrativeArea5', 'Neighborhood']},
                {'dcid': 'wikidataId/Q28040572',
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['Neighborhood']},
                {'dcid': 'wikidataId/Q2967971',
                 'name': 'Château Rouge',
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['Neighborhood']},
                {'dcid': 'wikidataId/Q2972946',
                 'name': "Paris' 5th constituency",
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['AdministrativeArea']},
                {'dcid': 'wikidataId/Q2974809',
                 'name': 'Floral City, Paris',
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['Neighborhood']},
                {'dcid': 'wikidataId/Q3025141',
                 'name': "Paris' 2nd constituency",
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['AdministrativeArea']},
                {'dcid': 'wikidataId/Q3032517',
                 'name': "Paris' 18th constituency",
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['AdministrativeArea']},
                {'dcid': 'wikidataId/Q3032527',
                 'name': "Paris' 17th constituency",
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['AdministrativeArea']},
                {'dcid': 'wikidataId/Q3032605',
                 'name': "Paris' 10th constituency",
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['AdministrativeArea']},
                {'dcid': 'wikidataId/Q3038236',
                 'name': "Paris' 12th constituency",
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['AdministrativeArea']},
                {'dcid': 'wikidataId/Q3067304',
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['AdministrativeArea']},
                {'dcid': 'wikidataId/Q3067308',
                 'name': 'Saint-Antoine district',
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['Neighborhood']},
                {'dcid': 'wikidataId/Q3067309',
                 'name': 'Faubourg Saint-Jacques',
                 'provenanceId': 'dc/base/WikidataGeos',
                 'types': ['Neighborhood']},     

Example 2: Fetch the direct children of a single place by type, as a dict

This example gets the DCIDs of all the states in the United States by limiting to a child type of State only.

Request:

client.node.fetch_place_children(place_dcids=["country/USA"], children_type="State")

Response:

(truncated)

{'country/USA': [{'dcid': 'geoId/01', 'name': 'Alabama'},
                 {'dcid': 'geoId/02', 'name': 'Alaska'},
                 {'dcid': 'geoId/04', 'name': 'Arizona'},
                 {'dcid': 'geoId/05', 'name': 'Arkansas'},
                 {'dcid': 'geoId/06', 'name': 'California'},
                 {'dcid': 'geoId/08', 'name': 'Colorado'},
                 {'dcid': 'geoId/09', 'name': 'Connecticut'},
                 {'dcid': 'geoId/10', 'name': 'Delaware'},
                 {'dcid': 'geoId/11', 'name': 'District of Columbia'},
                 {'dcid': 'geoId/12', 'name': 'Florida'},
                 {'dcid': 'geoId/13', 'name': 'Georgia'},
                 {'dcid': 'geoId/15', 'name': 'Hawaii'},
                 {'dcid': 'geoId/16', 'name': 'Idaho'},
                 {'dcid': 'geoId/17', 'name': 'Illinois'},
                 {'dcid': 'geoId/18', 'name': 'Indiana'},
                 {'dcid': 'geoId/19', 'name': 'Iowa'},
                 {'dcid': 'geoId/20', 'name': 'Kansas'},
                 {'dcid': 'geoId/21', 'name': 'Kentucky'},
                 {'dcid': 'geoId/22', 'name': 'Louisiana'},
                 {'dcid': 'geoId/23', 'name': 'Maine'},
                 {'dcid': 'geoId/24', 'name': 'Maryland'},
                 {'dcid': 'geoId/25', 'name': 'Massachusetts'},
                 {'dcid': 'geoId/26', 'name': 'Michigan'},
                 {'dcid': 'geoId/27', 'name': 'Minnesota'},
                 {'dcid': 'geoId/28', 'name': 'Mississippi'},
...

Example 3: Fetch the direct children of a single place by type, as a list of objects

This example is the same as the previous one, but the response is returned as a list of NodeResponse objects.

Request:

client.node.fetch_place_children(place_dcids=["country/USA"], children_type="State", as_dict=False)

Response:

(truncated)

{'country/USA': [Node(dcid='geoId/01',
                      name='Alabama',
                      provenanceId=None,
                      types=None,
                      value=None),
                 Node(dcid='geoId/02',
                      name='Alaska',
                      provenanceId=None,
                      types=None,
                      value=None),
                 Node(dcid='geoId/04',
                      name='Arizona',
                      provenanceId=None,
                      types=None,
                      value=None),
                 Node(dcid='geoId/05',
                      name='Arkansas',
                      provenanceId=None,
                      types=None,
                      value=None),
                 Node(dcid='geoId/06',
                      name='California',
                      provenanceId=None,
                      types=None,
                      value=None),
                 Node(dcid='geoId/08',
                      name='Colorado',
                      provenanceId=None,
                      types=None,
                      value=None),
                 Node(dcid='geoId/09',
                      name='Connecticut',
                      provenanceId=None,
                      types=None,
                      value=None),
                 Node(dcid='geoId/10',
                      name='Delaware',
                      provenanceId=None,
                      types=None,
                      value=None),
...

Example 4: Fetch the direct children of multiple places, as a dict

This example gets the DCIDs of the countries contained in 3 continents, namely Africa, Asia, and South America, and returns the result as a dict.

Request:

client.node.fetch_place_children(place_dcids=["africa", "asia", "southamerica"], children_type="Country")

Response:

(truncated)

{'africa': [{'dcid': 'country/AGO', 'name': 'Angola'},
            {'dcid': 'country/ATF', 'name': 'French Southern Territories'},
            {'dcid': 'country/BDI', 'name': 'Burundi'},
            {'dcid': 'country/BEN', 'name': 'Benin'},
            {'dcid': 'country/BFA', 'name': 'Burkina Faso'},
            {'dcid': 'country/BWA', 'name': 'Botswana'},
            {'dcid': 'country/CAF', 'name': 'Central African Republic'},
            {'dcid': 'country/CIV', 'name': "Côte d'Ivoire"},
            {'dcid': 'country/CMR', 'name': 'Cameroon'},
            {'dcid': 'country/COD', 'name': 'Congo [DRC]'},
            {'dcid': 'country/COG', 'name': 'Congo [Republic]'},
            {'dcid': 'country/COM', 'name': 'Comoros'},
            {'dcid': 'country/CPV', 'name': 'Cape Verde'},
            {'dcid': 'country/DJI', 'name': 'Djibouti'},
            {'dcid': 'country/DZA', 'name': 'Algeria'},
            {'dcid': 'country/EGY', 'name': 'Egypt'},
            {'dcid': 'country/ERI', 'name': 'Eritrea'},
            {'dcid': 'country/ESH', 'name': 'Western Sahara'},
            {'dcid': 'country/ETH', 'name': 'Ethiopia'},
            {'dcid': 'country/GAB', 'name': 'Gabon'},
            {'dcid': 'country/GHA', 'name': 'Ghana'},
            {'dcid': 'country/GIN', 'name': 'Guinea'},
            {'dcid': 'country/GMB', 'name': 'Gambia'},
            {'dcid': 'country/GNB', 'name': 'Guinea-Bissau'},
            {'dcid': 'country/GNQ', 'name': 'Equatorial Guinea'},
            {'dcid': 'country/KEN', 'name': 'Kenya'},
            {'dcid': 'country/LBR', 'name': 'Liberia'},
            {'dcid': 'country/LBY', 'name': 'Libya'},
            {'dcid': 'country/LSO', 'name': 'Lesotho'},
            {'dcid': 'country/MAR', 'name': 'Morocco'},
            {'dcid': 'country/MDG', 'name': 'Madagascar'},
            {'dcid': 'country/MLI', 'name': 'Mali'},
            {'dcid': 'country/MOZ', 'name': 'Mozambique'},
            {'dcid': 'country/MRT', 'name': 'Mauritania'},
            {'dcid': 'country/MUS', 'name': 'Mauritius'},
            {'dcid': 'country/MWI', 'name': 'Malawi'},
            {'dcid': 'country/MYT', 'name': 'Mayotte'},
            {'dcid': 'country/NAM', 'name': 'Namibia'},
            {'dcid': 'country/NER', 'name': 'Niger'},
            {'dcid': 'country/NGA', 'name': 'Nigeria'},
            {'dcid': 'country/REU', 'name': 'Réunion'},
            {'dcid': 'country/RWA', 'name': 'Rwanda'},
            {'dcid': 'country/SDN', 'name': 'Sudan'},
            {'dcid': 'country/SEN', 'name': 'Senegal'},
            {'dcid': 'country/SHN', 'name': 'Saint Helena'},
            {'dcid': 'country/SLE', 'name': 'Sierra Leone'},
            {'dcid': 'country/SOM', 'name': 'Somalia'},
            {'dcid': 'country/SSD', 'name': 'South Sudan'},
            {'dcid': 'country/STP', 'name': 'São Tomé and Príncipe'},
            {'dcid': 'country/SWZ', 'name': 'Eswatini'},
            {'dcid': 'country/SYC', 'name': 'Seychelles'},
            {'dcid': 'country/TCD', 'name': 'Chad'},
            {'dcid': 'country/TGO', 'name': 'Togo'},
            {'dcid': 'country/TUN', 'name': 'Tunisia'},
            {'dcid': 'country/TZA', 'name': 'Tanzania'},
            {'dcid': 'country/UGA', 'name': 'Uganda'},
            {'dcid': 'country/ZAF', 'name': 'South Africa'},
            {'dcid': 'country/ZMB', 'name': 'Zambia'},
            {'dcid': 'country/ZWE', 'name': 'Zimbabwe'}],
 'asia': [{'dcid': 'country/AFG', 'name': 'Afghanistan'},
          {'dcid': 'country/ARE', 'name': 'United Arab Emirates'},
          {'dcid': 'country/ARM', 'name': 'Armenia'},
          {'dcid': 'country/AZE', 'name': 'Azerbaijan'},
          {'dcid': 'country/BGD', 'name': 'Bangladesh'},
          {'dcid': 'country/BHR', 'name': 'Bahrain'},
          {'dcid': 'country/BRN', 'name': 'Brunei'},
          {'dcid': 'country/BTN', 'name': 'Bhutan'},
          {'dcid': 'country/CCK', 'name': 'Cocos (Keeling) Islands'},
          {'dcid': 'country/CHN', 'name': 'China'},
          {'dcid': 'country/CXR', 'name': 'Christmas Island'},
          {'dcid': 'country/CYP', 'name': 'Cyprus'},
          {'dcid': 'country/EGY', 'name': 'Egypt'},
          {'dcid': 'country/GEO', 'name': 'Georgia'},
          {'dcid': 'country/HKG', 'name': 'Hong Kong'},
          {'dcid': 'country/IDN', 'name': 'Indonesia'},
          {'dcid': 'country/IND', 'name': 'India'},
          {'dcid': 'country/IOT', 'name': 'British Indian Ocean Territory'},
          {'dcid': 'country/IRN', 'name': 'Iran'},
          {'dcid': 'country/IRQ', 'name': 'Iraq'},
          {'dcid': 'country/ISR', 'name': 'Israel'},
          {'dcid': 'country/JOR', 'name': 'Jordan'},
          {'dcid': 'country/JPN', 'name': 'Japan'},
          {'dcid': 'country/KAZ', 'name': 'Kazakhstan'},
          {'dcid': 'country/KGZ', 'name': 'Kyrgyzstan'},
          {'dcid': 'country/KHM', 'name': 'Cambodia'},
          {'dcid': 'country/KOR', 'name': 'South Korea'},
          {'dcid': 'country/KWT', 'name': 'Kuwait'},
          {'dcid': 'country/LAO', 'name': 'Laos'},
          {'dcid': 'country/LBN', 'name': 'Lebanon'},
          {'dcid': 'country/LKA', 'name': 'Sri Lanka'},
          {'dcid': 'country/MAC', 'name': 'Macau'},
          {'dcid': 'country/MDV', 'name': 'Maldives'},
          {'dcid': 'country/MMR', 'name': 'Myanmar [Burma]'},
          {'dcid': 'country/MNG', 'name': 'Mongolia'},
          {'dcid': 'country/MYS', 'name': 'Malaysia'},
          {'dcid': 'country/NPL', 'name': 'Nepal'},
          {'dcid': 'country/OMN', 'name': 'Oman'},
          {'dcid': 'country/PAK', 'name': 'Pakistan'},
          {'dcid': 'country/PHL', 'name': 'Philippines'},
          {'dcid': 'country/PRK', 'name': 'North Korea'},
          {'dcid': 'country/PSE', 'name': 'Palestinian Territories'},
          {'dcid': 'country/QAT', 'name': 'Qatar'},
          {'dcid': 'country/RUS', 'name': 'Russia'},
          {'dcid': 'country/SAU', 'name': 'Saudi Arabia'},
          {'dcid': 'country/SGP', 'name': 'Singapore'},
          {'dcid': 'country/SYR', 'name': 'Syria'},
          {'dcid': 'country/THA', 'name': 'Thailand'},
          {'dcid': 'country/TJK', 'name': 'Tajikistan'},
          {'dcid': 'country/TKM', 'name': 'Turkmenistan'},
          {'dcid': 'country/TLS', 'name': 'East Timor'},
          {'dcid': 'country/TUR', 'name': 'Turkey'},
          {'dcid': 'country/TWN', 'name': 'Taiwan'},
          {'dcid': 'country/UZB', 'name': 'Uzbekistan'},
          {'dcid': 'country/VNM', 'name': 'Vietnam'},
          {'dcid': 'country/YEM', 'name': 'Yemen'}],
 'southamerica': [{'dcid': 'country/ABW', 'name': 'Aruba'},
                  {'dcid': 'country/ARG', 'name': 'Argentina'},
                  {'dcid': 'country/BOL', 'name': 'Bolivia'},
                  {'dcid': 'country/BRA', 'name': 'Brazil'},
                  {'dcid': 'country/CHL', 'name': 'Chile'},
                  {'dcid': 'country/COL', 'name': 'Colombia'},
                  {'dcid': 'country/CUW', 'name': 'Curaçao'},
                  {'dcid': 'country/ECU', 'name': 'Ecuador'},
                  {'dcid': 'country/FLK',
                   'name': 'Falkland Islands [Islas Malvinas]'},
                  {'dcid': 'country/GUF', 'name': 'French Guiana'},
                  {'dcid': 'country/GUY', 'name': 'Guyana'},
                  {'dcid': 'country/PAN', 'name': 'Panama'},
                  {'dcid': 'country/PER', 'name': 'Peru'},
                  {'dcid': 'country/PRY', 'name': 'Paraguay'},
                  {'dcid': 'country/SUR', 'name': 'Suriname'},
                  {'dcid': 'country/TTO', 'name': 'Trinidad and Tobago'},
                  {'dcid': 'country/URY', 'name': 'Uruguay'},
                  {'dcid': 'country/VEN', 'name': 'Venezuela'}]}

fetch_place_descendants

Fetches the names, DCIDs, and types of all direct and indirect child places of the selected places.

Note: Because of the structure of the Data Commons knowledge graph, in which entities lower in a geographical hierarchy may be directly linked to the “top” entity, this method may be effectively the same as the fetch_place_children method.

Signature

fetch_place_place_descendants(place_dcids, descendants_type, as_tree, max_concurrent_requests)

Input parameters

Name Type Description
place_dcids
Required
string or list of strings One or more place entities whose complete child lineage you want to fetch.
descendants_type
Optional
string The type of the child entities to fetch, for example, State, County, City. If not specified, fetches all descendant types. Note that if you do not specify this parameter, the query will take several minutes to complete.
as_tree
Optional
bool Whether to return the response as a dictionary mapping each input DCID to a flat list of node objects (when set to False) or a nested tree structure showing the relationship between all child objects (when set to True). Defaults to False.
max_concurrent_requests
Optional
int The maximum number of concurrent requests to make: the method fetches the graph by parallelizing requests for each input place entity. Defaults to 10. For queries that include multiple input place entities and that take overly long to return results, you may want to bump this up. For a single input entity, it has no effect. Don’t set it to more than 100 as it may affect server memory.

Response

Dependent on the setting of the as_tree parameter. See above for details.

Examples

Example 1: Fetch all descendants of one type of a single place, as a dict

This example fetches all the descendants of type “City” of the U.S. state of Hawaii, as a flat dictionary.

Request:

client.node.fetch_place_descendants(place_dcids=["geoId/15"], descendants_type="City")

Response:

(truncated)

{'geoId/15': [{'dcid': 'geoId/15003', 'name': 'Honolulu County'},
              {'dcid': 'geoId/1500400', 'name': 'Ahuimanu'},
              {'dcid': 'geoId/1500550', 'name': 'Aiea'},
              {'dcid': 'geoId/1501085', 'name': 'Ainaloa'},
              {'dcid': 'geoId/1502200', 'name': 'Anahola'},
              {'dcid': 'geoId/1502832', 'name': 'Black Sands'},
              {'dcid': 'geoId/1503850', 'name': 'Captain Cook'},
              {'dcid': 'geoId/1505900', 'name': 'Discovery Harbour'},
              {'dcid': 'geoId/1506290', 'name': 'East Honolulu'},
              {'dcid': 'geoId/1506300', 'name': 'East Kapolei'},
              {'dcid': 'geoId/1506325', 'name': 'Eden Roc'},
              {'dcid': 'geoId/1507000', 'name': 'Eleele'},
              {'dcid': 'geoId/1507450', 'name': 'Ewa Beach'},
              {'dcid': 'geoId/1507470', 'name': 'Ewa Gentry'},
              {'dcid': 'geoId/1507485', 'name': 'Ewa Villages'},
              {'dcid': 'geoId/1507542', 'name': 'Fern Acres'},
              {'dcid': 'geoId/1507675', 'name': 'Fern Forest'},
              {'dcid': 'geoId/1508950', 'name': 'Haena'},
              {'dcid': 'geoId/1509260', 'name': 'Haiku-Pauwela'},
              {'dcid': 'geoId/1509700', 'name': 'Halaula'},
              {'dcid': 'geoId/1510000', 'name': 'Halawa'},
              {'dcid': 'geoId/1510750', 'name': 'Haleiwa'},
              {'dcid': 'geoId/1510900', 'name': 'Haliimaile'},
              {'dcid': 'geoId/1511350', 'name': 'Hana'},
              {'dcid': 'geoId/1511500', 'name': 'Hanalei'},
              {'dcid': 'geoId/1511650', 'name': 'Hanamaulu'},
              {'dcid': 'geoId/1511800', 'name': 'Hanapepe'},
              {'dcid': 'geoId/1512400', 'name': 'Hauula'},
              {'dcid': 'geoId/1512450', 'name': 'Hawaiian Acres'},
              {'dcid': 'geoId/1512500', 'name': 'Hawaiian Beaches'},
              {'dcid': 'geoId/1512530', 'name': 'Hawaiian Ocean View'},
              {'dcid': 'geoId/1512600', 'name': 'Hawaiian Paradise Park'},
              {'dcid': 'geoId/1513600', 'name': 'Hawi'},
              {'dcid': 'geoId/1513900', 'name': 'Heeia'},
              {'dcid': 'geoId/1513970', 'name': 'Helemano'},
              {'dcid': 'geoId/1514200', 'name': 'Hickam Housing'},
              {'dcid': 'geoId/1514650', 'name': 'Hilo'},
              {'dcid': 'geoId/1515700', 'name': 'Holualoa'},
              {'dcid': 'geoId/1516000', 'name': 'Honalo'},
              {'dcid': 'geoId/1516160', 'name': 'Honaunau-Napoopoo'},
              {'dcid': 'geoId/1516450', 'name': 'Honokaa'},
              {'dcid': 'geoId/1517000', 'name': 'Honolulu'},
              {'dcid': 'geoId/1517450', 'name': 'Honomu'},
              {'dcid': 'geoId/1519100', 'name': 'Iroquois Point'},
              {'dcid': 'geoId/1519550', 'name': 'Kaaawa'},
              {'dcid': 'geoId/1520000', 'name': 'Kaanapali'},
              {'dcid': 'geoId/1521200', 'name': 'Kahaluu'},
              {'dcid': 'geoId/1521230', 'name': 'Kahaluu-Keauhou'},
              {'dcid': 'geoId/1522250', 'name': 'Kahuku'},
...

fetch_place_parents

Fetches the names, DCIDs, and types of direct parent places of the selected place entities.

Signature

fetch_place_parents(place_dcids, as_dict)

Input parameters

Name Type Description
place_dcids
Required
string or list of strings One or more place entities whose direct parents you want to look up.
as_dict
Optional
bool Whether to return the response as a dictionary mapping each input DCID to a dict of parent entities (when set to True), or a dictionary mapping each input DCID to a list of parent NodeResponse objects (when set to False). Defaults to True.

Response

Dependent on the setting of the as_dict parameter. See above for details.

Examples

Example 1: Fetch the direct parents of several places, as a dict

This example gets the immediate parents of 3 different places: USA, Guatemala and Africa.

Request:

client.node.fetch_place_parents(place_dcids=["africa", "country/GTM", "country/USA", "wikidataId/Q2608785"])

Response:

{'africa': [{'dcid': 'Earth',
             'name': 'World',
             'provenanceId': 'dc/base/BaseGeos',
             'types': ['Place']}],
 'country/GTM': [{'dcid': 'CentralAmerica',
                  'name': 'Central America (including Mexico)',
                  'provenanceId': 'dc/base/WikidataOtherIdGeos',
                  'types': ['UNGeoRegion']},
                 {'dcid': 'LatinAmericaAndCaribbean',
                  'name': 'Latin America and the Caribbean',
                  'provenanceId': 'dc/base/WikidataOtherIdGeos',
                  'types': ['UNGeoRegion']},
                 {'dcid': 'northamerica',
                  'name': 'North America',
                  'provenanceId': 'dc/base/WikidataOtherIdGeos',
                  'types': ['Continent']},
                 {'dcid': 'undata-geo/G00134000',
                  'name': 'Americas',
                  'provenanceId': 'dc/base/WikidataOtherIdGeos',
                  'types': ['GeoRegion']}],
 'country/USA': [{'dcid': 'northamerica',
                  'name': 'North America',
                  'provenanceId': 'dc/base/WikidataOtherIdGeos',
                  'types': ['Continent']},
                 {'dcid': 'undata-geo/G00134000',
                  'name': 'Americas',
                  'provenanceId': 'dc/base/WikidataOtherIdGeos',
                  'types': ['GeoRegion']},
                 {'dcid': 'undata-geo/G00136000',
                  'name': 'Northern America',
                  'provenanceId': 'dc/base/WikidataOtherIdGeos',
                  'types': ['GeoRegion']},
                 {'dcid': 'undata-geo/G00406000',
                  'name': 'Organisation for Economic Co-operation and '
                          'Development (OECD)',
                  'provenanceId': 'dc/base/WikidataOtherIdGeos',
                  'types': ['GeoRegion']}],
 'wikidataId/Q2608785': [{'dcid': 'country/GTM',
                          'name': 'Guatemala',
                          'provenanceId': 'dc/base/WikidataGeos',
                          'types': ['Country']}]}

fetch_place_ancestors

Fetches the names, DCIDs, and types of all direct and indirect parent places of the selected places.

Signature

fetch_place_place_ancestors(place_dcids, as_tree, max_concurrent_requests)

Input parameters

Name Type Description
place_dcids
Required
string or list of strings One or more place entities whose complete parent lineage you want to fetch.
as_tree
Optional
bool Whether to return the response as a dictionary mapping each input DCID to a flat list of node objects (when set to False) or a nested tree structure showing the relationship between all parent objects (when set to True). Defaults to False.
max_concurrent_requests
Optional
int See fetch_place_descendants for description.

Response

Dependent on the setting of the as_tree parameter. See fetch_place_descendants for details.

Examples

Example 1: Fetch all ancestors of a single place, as a tree

This example gets all the direct and indirect parents of the country Canada, and returns the response as a nested tree structure.

Request:

client.node.fetch_place_ancestors(place_dcids=["country/CAN"], as_tree=True)

Response:

{'country/CAN': {'dcid': 'country/CAN',
                 'name': None,
                 'type': None,
                 'parents': [{'dcid': 'northamerica',
                              'name': 'North America',
                              'type': ['Continent'],
                              'parents': [{'dcid': 'Earth',
                                           'name': 'World',
                                           'type': ['Place'],
                                           'parents': []}]},
                             {'dcid': 'undata-geo/G00134000',
                              'name': 'Americas',
                              'type': ['GeoRegion'],
                              'parents': [{'dcid': 'Earth',
                                           'name': 'World',
                                           'type': ['Place'],
                                           'parents': []}]},
                             {'dcid': 'undata-geo/G00136000',
                              'name': 'Northern America',
                              'type': ['GeoRegion'],
                              'parents': [{'dcid': 'Earth',
                                           'name': 'World',
                                           'type': ['Place'],
                                           'parents': []},
                                          {'dcid': 'undata-geo/G00134000',
                                           'name': 'Americas',
                                           'type': ['GeoRegion'],
                                           'parents': [{'dcid': 'Earth',
                                                        'name': 'World',
                                                        'type': ['Place'],
                                                        'parents': []}]}]},
                             {'dcid': 'undata-geo/G00406000',
                              'name': 'Organisation for Economic Co-operation '
                                      'and Development (OECD)',
                              'type': ['GeoRegion'],
                              'parents': [{'dcid': 'Earth',
                                           'name': 'World',
                                           'type': ['Place'],
                                           'parents': []}]}]}}

Pagination

All endpoint methods return all data in a single response by default. For some node requests, that can return huge responses, you can “paginate” the returned payload, that is, split it over multiple requests. To do so, you can set the all_pages parameter, accepted by the node methods that return NodeResponse objects (see Response for details), to False. In this case, only a subset of the response is returned, along with a long string of characters called a token. To get the next set of entries, you repeat the request with next_token as a method parameter, with the token previously returned as its value.

For example, this request, which returns all incoming relations for California, returns a very large number of data items and can take several seconds to complete:

response = client.node.fetch(node_dcids="geoId/06", expression="<-*")

To paginate the data, send the first request like this:

response = client.node.fetch(node_dcids="geoId/06", expression="<-*", all_pages=False)

The response will have something like the following at the end:

'nextToken': 'SoME vERY Long STriNG'

You can obtain the value of the response’s nextToken by calling the NodeResponse property nextToken.

response.nextToken

To get the next set of entries, repeat the request with the next_token parameter set to the value of the previous response, until there is no nextToken in the response.

while response.nextToken is not None:
   response = client.node.fetch(node_dcids="geoId/06", expression="<-*", all_pages=False, next_token=response.nextToken)

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