class_docstr: Abstract class for sparse matrix types.
class_docstr_tok: ["Abstract","class","for","sparse","matrix","types","."]
code: def sorted_indices(self):
      # TODO(ebrevdo): A more efficient implementation?
      return self.to_sparse_tensor().indices
  
imports: import abc
  import collections
  from tensorflow.python.eager import context
  from tensorflow.python.framework import cpp_shape_inference_pb2
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.framework import tensor
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import resource_variable_ops
  from tensorflow.python.ops.linalg.sparse import gen_sparse_csr_matrix_ops
  from tensorflow.python.ops.linalg.sparse.gen_sparse_csr_matrix_ops import *
label_desc: Use image node_id 13 for calling the SparseMatrix obj's underlying member method code with example usage: obj.sorted_indices() and returns: self