// +structType=atomic
message Subject {
  // Kind of object being referenced. Values defined by this API group are "User", "Group", and "ServiceAccount".
  // If the Authorizer does not recognized the kind value, the Authorizer should report an error.
  optional string kind = 1;

  // APIGroup holds the API group of the referenced subject.
  // Defaults to "" for ServiceAccount subjects.

// or a value for non-objects such as user and group names.
message Subject {
  // Kind of object being referenced. Values defined by this API group are "User", "Group", and "ServiceAccount".
  // If the Authorizer does not recognized the kind value, the Authorizer should report an error.
  optional string kind = 1;

  // APIVersion holds the API group and version of the referenced subject.
  // Defaults to "v1" for ServiceAccount subjects.

// or a value for non-objects such as user and group names.
message Subject {
  // Kind of object being referenced. Values defined by this API group are "User", "Group", and "ServiceAccount".
  // If the Authorizer does not recognized the kind value, the Authorizer should report an error.
  optional string kind = 1;

  // APIGroup holds the API group of the referenced subject.
  // Defaults to "" for ServiceAccount subjects.