class_docstr: Flat input list.
code: def shared_type(self):
      return SharedType.NotReusable
  
file_path: towhee/tests/unittests/mock_operators/flat_operator/flat_operator.py
imports: from typing import NamedTuple, List
  from towhee.operator import Operator, SharedType
label_desc: Use image node_id 3 for calling the FlatOperator obj's underlying member method code with example usage: obj.shared_type() and returns: SharedType