code: def copy_value(self):
      return self._copy_value
  
imports: from ...None import opcodes
  from ...core import OutputType
  from ...serialization.serializables import AnyField, BoolField
  from ..core import DATAFRAME_TYPE
  from ..operands import DataFrameOperand, DataFrameOperandMixin
  from ..utils import validate_axis, parse_index, build_df, build_series
label_desc: Use image node_id 4 for calling the DataFrameRenameAxis obj's underlying member method code with example usage: obj.copy_value() and returns: self