code: def n(self):
      return self._n
  
imports: from collections.abc import Iterable
  from ...core import recursive_tile
  from ...serialization.serializables import FieldTypes, KeyField, StringField, Int32Field, Int64Field, TupleField
  from ...utils import has_unknown_shape
  from ..utils import validate_axis, decide_chunk_sizes
  from ..operands import TensorHasInput, TensorOperandMixin
  from ..array_utils import get_array_module
label_desc: Use image node_id 1 for calling the TensorBaseSingleDimensionFFT obj's underlying member method code with example usage: obj.n() and returns: self