message: random_seed documentation improvement
diff: @@ -96,9 +96,12 @@ def set_random_seed(seed):
  1. If neither the graph-level nor the operation seed is set:
  A random seed is used for this op.
  2. If the graph-level seed is set, but the operation seed is not:
  - The system deterministically (determined by the current graph size) picks
  - an operation seed in conjunction with the graph-level seed so that it gets
  - a unique random sequence.
  + The system deterministically picks an operation seed in conjunction with
  + the graph-level seed so that it gets a unique random sequence. Within the
  + same version of tensorflow and user code, this sequence is deterministic.
  + However across different versions, this sequence might change. If the
  + code depends on particular seeds to work, specify both graph-level
  + and operation-level seeds explicitly.
  3. If the graph-level seed is not set, but the operation seed is set:
  A default graph-level seed and the specified operation seed are used to
  determine the random sequence.
  @@ -198,9 +201,13 @@ def set_seed(seed):
  1. If neither the global seed nor the operation seed is set: A randomly
  picked seed is used for this op.
  - 2. If the operation seed is not set but the global seed is set: The system
  - picks an operation seed from a stream of seeds determined by the global
  - seed.
  + 2. If the graph-level seed is set, but the operation seed is not:
  + The system deterministically picks an operation seed in conjunction with
  + the graph-level seed so that it gets a unique random sequence. Within the
  + same version of tensorflow and user code, this sequence is deterministic.
  + However across different versions, this sequence might change. If the
  + code depends on particular seeds to work, specify both graph-level
  + and operation-level seeds explicitly.
  3. If the operation seed is set, but the global seed is not set:
  A default global seed and the specified operation seed are used to
  determine the random sequence.
  @@ -308,5 +315,4 @@ def set_seed(seed):
  Args:
  seed: integer.
  """
  - # TODO(go/tf2-random): change doc, update to match design doc
  set_random_seed(seed)
  