class_docstr: Extracts the field ``name`` from the input.
class_docstr_tok: ["Extracts","the","field","``","name","``","from","the","input","."]
code: def __call__(self, item):
      return item[self.name]
  
imports: import re
  from dataclasses import dataclass, InitVar, field
  from itertools import chain
  from typing import Any, Dict, List, Union, Optional, ClassVar
  import numpy
  from toolz import valfilter, valmap
label_desc: Use image node_id 1 for calling the Get obj's underlying member method code with example usage: obj.__call__(item) and returns: item