code: def __call__(self, a):
      assert self.axis == 0
      if self.ignore_index:
          index_value = parse_index(pd.RangeIndex(a.shape[0]))
      else:
          if isinstance(a.index_value.value, IndexValue.RangeIndex):
              index_value = parse_index(pd.Index([], dtype=np.int64))
          else:
              index_value = a.index_value
      if a.ndim == 2:
          return self.new_dataframe(
              [a],
              shape=a.shape,
              dtypes=a.dtypes,
              index_value=index_value,
              columns_value=a.columns_value,
          )
      else:
          return self.new_series(
              [a],
              shape=a.shape,
              dtype=a.dtype,
              index_value=index_value,
              name=a.name,
          )
  
imports: import numpy
  import pandas
  from ...None import opcodes
  from ...core import OutputType
  from ...serialization.serializables import ListField
  from ...tensor.base.sort import _validate_sort_psrs_kinds
  from ..utils import parse_index, validate_axis, build_concatenated_rows_frame
  from ..core import IndexValue
  from .core import DataFrameSortOperand
  from .psrs import DataFramePSRSOperandMixin, execute_sort_values
label_desc: Use image node_id 6 for calling the DataFrameSortValues obj's underlying member method code with example usage: obj.__call__(a) and returns: self, self