code: def _tile(cls, op):
      inp = op.inputs[0]
      if inp.shape[op.axis] == 0:
          # if the length is zero, return input directly
          return inp
      if inp.ndim == 2:
          return (yield from cls._tile_dataframe(op))
      else:
          return (yield from cls._tile_series(op))
  
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 4 for calling the DataFrameSortValues obj's underlying member method code with example usage: obj._tile(cls, op) and returns: inp, unknown, unknown