class_docstr: Reads a normal node's info from its proto representation.
class_docstr_tok: ["Reads","a","normal","node","'s","info","from","its","proto","representation","."]
code: def upstream_nodes(self) -> Sequence[str]:
      return self._node.upstream_nodes
  
imports: import abc
  from typing import Sequence, Union
  from tfx.dsl.compiler import constants
  from tfx.proto.orchestration import pipeline_pb2
  from google.protobuf import message
label_desc: Use image node_id 7 for calling the PipelineNodeProtoView obj's underlying member method code with example usage: obj.upstream_nodes() and returns: self