code: def emplace(self, key, value):
      return self.leafs_.emplace(key, value)
  
imports: from enum import IntEnum
  from typing import List
  import numpy
  from onnx.reference.op_run import OpRun
label_desc: Use image node_id 8 for calling the NgramPart obj's underlying member method code with example usage: obj.emplace(key, value) and returns: self