code: function checkSpacing(node) {
              const tagToken = sourceCode.getTokenBefore(node.quasi);
              const literalToken = sourceCode.getFirstToken(node.quasi);
              const hasWhitespace = sourceCode.isSpaceBetweenTokens(tagToken, literalToken);
  
              if (never && hasWhitespace) {
                  context.report({
                      node,
                      loc: tagToken.loc.start,
                      messageId: "unexpected",
                      fix(fixer) {
                          const comments = sourceCode.getCommentsBefore(node.quasi);
  
                          // Don't fix anything if there's a single line comment after the template tag
                          if (comments.some(comment => comment.type === "Line")) {
                              return null;
                          }
  
                          return fixer.replaceTextRange(
                              [tagToken.range[1], literalToken.range[0]],
                              comments.reduce((text, comment) => text + sourceCode.getText(comment), "")
                          );
                      }
                  });
              } else if (!never && !hasWhitespace) {
                  context.report({
                      node,
                      loc: tagToken.loc.start,
                      messageId: "missing",
                      fix(fixer) {
                          return fixer.insertTextAfter(tagToken, " ");
                      }
                  });
              }
          }
docs: Check if a space is present between a template tag and its literal
  @param {ASTNode} node node to evaluate
  @returns {void}
  @private