function getTokens(node) {
			const arrow = sourceCode.getTokenBefore(
				node.body,
				astUtils.isArrowToken,
			);

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