code: def k(self):
      return getattr(self, "_k", 0)
  
imports: import itertools
  import numpy
  from ...None import opcodes
  from ...serialization.serializables import KeyField, Int32Field
  from ...utils import has_unknown_shape
  from ..core import TENSOR_TYPE
  from ...lib.sparse import diag
  from ...lib.sparse.core import issparse, get_array_module, get_sparse_module
  from ...lib import sparse
  from ..core import TensorOrder
  from ..array_utils import create_array
  from .core import TensorHasInput
  from .zeros import TensorZeros
  from .array import tensor
label_desc: Use image node_id 8 for calling the TensorDiag obj's underlying member method code with example usage: obj.k() and returns: getattr