code: def value(self):
      return self._value
  
imports: import numpy
  import pandas
  from ...None import opcodes
  from ...core import ENTITY_TYPE, get_output_types, recursive_tile
  from ...serialization.serializables import AnyField, Int8Field, KeyField
  from ...utils import has_unknown_shape
  from ..operands import DataFrameOperandMixin, DataFrameOperand
  from ..utils import parse_index, validate_axis
label_desc: Use image node_id 3 for calling the DataFrameSetAxis obj's underlying member method code with example usage: obj.value() and returns: self