code: function checkMemberSeparatorStyle(node) {
              const isInterface = node.type === "TSInterfaceBody";
              const isSingleLine = node.loc.start.line === node.loc.end.line;
  
              const members = isInterface ? node.body : node.members;
  
              const typeOpts = isInterface
                  ? interfaceOptions
                  : typeLiteralOptions;
              const opts = isSingleLine
                  ? typeOpts.singleline
                  : typeOpts.multiline;
  
              members.forEach((member, index) => {
                  checkLastToken(member, opts, index === members.length - 1);
              });
          }
docs: Check the member separator being used matches the delimiter.
  @param {ASTNode} node the node to be evaluated.
  @returns {void}
  @private