message: undoing earlier change and clarifying documentation
diff: @@ -95,9 +95,13 @@ message GraphProto {
  repeated string input = 3; // namespace Tensor
  repeated string output = 4; // namespace Tensor
  - // An optional list of named tensor values (constants).
  - // Used to pass serialized parameters for networks.
  - // Each TensorProto entry must have a name (unique in the tensor name space).
  + // A list of named tensor values (constants), used to specify default
  + // values for some of the inputs of the graph.
  + // Each TensorProto entry must have a distinct name (within the list) that
  + // also appears in the input list.
  + // In an evaluation, the default value specified here is used if and only if
  + // user specifies no value for the corresponding input parameter.
  + // May be used to pass serialized parameters for networks.
  repeated TensorProto initializer = 5;
  // The version of the IR this graph targets. See Version enum below.
  