Function _get_some_layer_name

dask/highlevelgraph.py:1002–1010

Somehow get a unique name for a Layer from a non-HighLevelGraph dask mapping

(collection)

def _get_some_layer_name(collection) -> str:
    """Somehow get a unique name for a Layer from a non-HighLevelGraph dask mapping"""
    try:
        (name,) = collection.__dask_layers__()
        return name
    except (AttributeError, ValueError):
        # collection does not define the optional __dask_layers__ method
        # or it spuriously returns more than one layer
        return str(id(collection))


@normalize_token.register(HighLevelGraph)