class_docstr: A prescription of how metadata is to be passed to a single method.
  
  Refer to :class:`MetadataRequest` for how this class is used.
  
  .. versionadded:: 1.3
  
  Parameters
  ----------
  owner : str
      A display name for the object owning these requests.
  
  method : str
      The name of the method to which these requests belong.
code: def __init__(self, owner, method):
      self._requests = dict()
      self.owner = owner
      self.method = method
  
imports: import inspect
  from collections import namedtuple
  from copy import deepcopy
  from typing import Optional, Union
  from warnings import warn
  from ..None import get_config
  from ..exceptions import UnsetMetadataPassedError
  from ._bunch import Bunch
label_desc: Use image node_id 1 to create a new MethodMetadataRequest object  with example: obj = MethodMetadataRequest(owner, method)