| from typing import TYPE_CHECKING, Any | |
| from langchain._api import create_importer | |
| if TYPE_CHECKING: | |
| from langchain_community.graphs.graph_document import ( | |
| GraphDocument, | |
| Node, | |
| Relationship, | |
| ) | |
| # Create a way to dynamically look up deprecated imports. | |
| # Used to consolidate logic for raising deprecation warnings and | |
| # handling optional imports. | |
| DEPRECATED_LOOKUP = { | |
| "Node": "langchain_community.graphs.graph_document", | |
| "Relationship": "langchain_community.graphs.graph_document", | |
| "GraphDocument": "langchain_community.graphs.graph_document", | |
| } | |
| _import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP) | |
| def __getattr__(name: str) -> Any: | |
| """Look up attributes dynamically.""" | |
| return _import_attribute(name) | |
| __all__ = [ | |
| "Node", | |
| "Relationship", | |
| "GraphDocument", | |
| ] | |