code: function _initBranch(branchToken) {
    const [, keyword, name, remainder] = branchToken.match(BRANCH_REGEX);
  
    return {
      name: name.toLowerCase(),
      keyword,
      params: _parseParams(remainder),
      fields: {},
    };
  }
docs: /* eslint-enable no-param-reassign 
  @private
  
  Initializes a tree branch
  
  @param {string} branchToken - branch name an params
  @return {Object}