text: /**
   * @license
   * Copyright 2018 Google LLC. All Rights Reserved.
   * Licensed under the Apache License, Version 2.0 (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-2.0
   *
   * 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.
   * =============================================================================
   */
  
  import node from 'rollup-plugin-node-resolve';
  import typescript from 'rollup-plugin-typescript2';
  import commonjs from 'rollup-plugin-commonjs';
  import resolve from 'rollup-plugin-node-resolve';
  
  const PREAMBLE = `/**
   * @license
   * Copyright ${(new Date).getFullYear()} Google LLC. All Rights Reserved.
   * Licensed under the Apache License, Version 2.0 (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-2.0
   *
   * 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.
   * =============================================================================
   */`;
  
  export default {
    input: 'src/index.ts',
    plugins: [
      typescript(),
      node(),
      // Polyfill require() from dependencies.
      commonjs({
        include: 'node_modules/**',
        namedExports: {
          './node_modules/seedrandom/index.js': ['alea']
        },
      })
    ],
    output: {
      extend: true,
      banner: PREAMBLE,
      file: 'dist/tf-core.js',
      format: 'umd',
      name: 'tf',
      globals: {'crypto': 'crypto'}
    },
    external: ['crypto'],
    onwarn: warning => {
      let {code} = warning;
      if (code === 'CIRCULAR_DEPENDENCY' ||
          code === 'CIRCULAR') {
        return;
      }
      console.warn('WARNING: ', warning.toString());
    }
  };
  