code: def num_nodes(
      feature_store: FeatureStore,
      graph_store: GraphStore,
      query: NodeType,
  ) -> int:
      r"""Returns the number of nodes in a given node type stored in a remote
      backend.
      """
      return _internal_num_nodes(feature_store, graph_store, query)
  
imports: from typing import Optional, Tuple, Union, overload
  from torch_geometric.data import FeatureStore, GraphStore
  from torch_geometric.typing import EdgeType, NodeType
label_desc: Use image node_id 4 for calling a global function with example usage: num_nodes(feature_store, graph_store, query) and returns: _internal_num_nodes