code: function getTokens(node) {
              const arrow = sourceCode.getTokenBefore(node.body, astUtils.isArrowToken);
  
              return {
                  before: sourceCode.getTokenBefore(arrow),
                  arrow,
                  after: sourceCode.getTokenAfter(arrow)
              };
          }
docs: Get tokens of arrow(`=>`) and before/after arrow.
  @param {ASTNode} node The arrow function node.
  @returns {Object} Tokens of arrow and before/after arrow.