code: def get_reduction_callable(cls, op):
      return UniqueReduction(name=cls._func_name, is_gpu=op.is_gpu())
  
file_path: mars/mars/dataframe/reduction/unique.py
imports: import pandas
  import numpy
  from ...None import opcodes
  from ...core import OutputType, ENTITY_TYPE
  from ...tensor.core import TensorOrder
  from ...utils import lazy_import
  from ..initializer import Series
  from .core import DataFrameReductionOperand, DataFrameReductionMixin, CustomReduction
label_desc: Use image node_id 1 for calling the DataFrameUnique obj's underlying member method code with example usage: obj.get_reduction_callable(cls, op) and returns: UniqueReduction