code: def infer_operable_filed_offsets(self) -> List[int]:
      operable_field_names = self.infer_operable_field_names()
      operable_field_offsets = [
          self._name_offset_mapping[field_name]
          for field_name in operable_field_names
      ]
  
      return operable_field_offsets
  
imports: import copy
  from typing import List, Union
  import pandas
  from .utils import AnonymousGenerator
label_desc: Use image node_id 24 for calling the SchemaManager obj's underlying member method code with example usage: obj.infer_operable_filed_offsets() and returns: operable_field_offsets