message: fix typo in example.
  fix typo in example.
  [0. 1] should be [0, 1]
diff: @@ -1405,7 +1405,7 @@ class SparseConditionalAccumulator(ConditionalAccumulatorBase):
  None, must be consistent with the accumulator's shape (if also provided).
  Example:
  - A tensor [[0, 0], [0. 1], [2, 3]] can be represented
  + A tensor [[0, 0], [0, 1], [2, 3]] can be represented
  indices: [1,2]
  values: [[0,1],[2,3]]
  shape: [3, 2]
  