Source code for langchain_community.graphs.graph_document

from __future__ import annotations

from typing import List, Union

from langchain_core.documents import Document
from langchain_core.load.serializable import Serializable
from langchain_core.pydantic_v1 import Field

[docs]class Node(Serializable): """Represents a node in a graph with associated properties. Attributes: id (Union[str, int]): A unique identifier for the node. type (str): The type or label of the node, default is "Node". properties (dict): Additional properties and metadata associated with the node. """ id: Union[str, int] type: str = "Node" properties: dict = Field(default_factory=dict)
[docs]class Relationship(Serializable): """Represents a directed relationship between two nodes in a graph. Attributes: source (Node): The source node of the relationship. target (Node): The target node of the relationship. type (str): The type of the relationship. properties (dict): Additional properties associated with the relationship. """ source: Node target: Node type: str properties: dict = Field(default_factory=dict)
[docs]class GraphDocument(Serializable): """Represents a graph document consisting of nodes and relationships. Attributes: nodes (List[Node]): A list of nodes in the graph. relationships (List[Relationship]): A list of relationships in the graph. source (Document): The document from which the graph information is derived. """ nodes: List[Node] relationships: List[Relationship] source: Document