tfx.v1.dsl.Importer

Definition for TFX Importer.

Inherits From: BaseNode

tfx.v1.dsl.Importer(
    source_uri: str,
    artifact_type: Type[tfx.v1.dsl.Artifact],
    reimport: Optional[bool] = False,
    properties: Optional[Dict[str, Union[str, int]]] = None,
    custom_properties: Optional[Dict[str, Union[str, int]]] = None,
    output_key: Optional[str] = None
)

Used in the notebooks

Used in the tutorials

The Importer is a special TFX node which registers an external resource into MLMD so that downstream nodes can use the registered artifact as an input.

Here is an example to use the Importer:

importer = Importer(
    source_uri='uri/to/schema',
    artifact_type=standard_artifacts.Schema,
    reimport=False).with_id('import_schema')
schema_gen = SchemaGen(
    fixed_schema=importer.outputs['result'],
    examples=...)

source_uri the URI of the resource that needs to be registered.
artifact_type the type of the artifact to import.
reimport whether or not to re-import as a new artifact if the URI has been imported in before.
properties Dictionary of properties for the imported Artifact. These properties should be ones declared for the given artifact_type (see the PROPERTIES attribute of the definition of the type for details).
custom_properties Dictionary of custom properties for the imported Artifact. These properties should be of type Text or int.
output_key The key to use for the imported artifact in the Importer's output dictionary. Defaults to 'result'.

outputs Output Channel dict that contains imported artifacts.