lib/output.js
function _setBooleanOption (key, val) {
  if (is.bool(val)) {
    this.options[key] = val;
  } else {
    throw new Error('Invalid ' + key + ' (boolean) ' + val);
  }
}
function _setBooleanOption (key, val) {
  if (is.bool(val)) {
    this.options[key] = val;
  } else {
    throw new Error('Invalid ' + key + ' (boolean) ' + val);
  }
}
function _setBooleanOption ( key , val ) { if ( is . bool ( val ) ) { this . options [ key ] = val ; } else { throw new Error ( 'Invalid ' + key + ' (boolean) ' + val ) ; } }
Update a Boolean attribute of the this.options Object.
@private
@param {String} key
@param {Boolean} val
@throws {Error} Invalid key
Update a Boolean attribute of the this . options Object .