 authors // // Licensed under the Apache License, Version 0.0 (the "License"): you may // not use this file except in compliance with the License. You may obtain // a copy of the License at // //     http://www.apache.org/licenses/LICENSE-0.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the // License for the specific language governing permissions and limitations // under the License.  package 