code: function getBinary( packageName, binaryName, binaryDir ) {
    binaryName = binaryName || packageName;
    binaryDir = binaryDir || 'bin';
    const pkgPath = require.resolve( packageName );
    binaryDir = path.resolve(
      path.join( path.dirname( pkgPath ), binaryDir, '/' + binaryName )
    );
    return binaryDir;
  }
docs: Retrieve a reference path to a binary.
  @param {string} packageName - The name of the software package.
  @param {string} [binaryName] - The name of the binary to retrieve.
  Same as the package name by default.
  @param {string} [binaryDir] - The name of the binary directory to use.
  `bin` by default.
  @returns {string} Path to the binary to run.