code: function verifyGroupAlignment(properties) {
              const length = properties.length,
                  widths = properties.map(getKeyWidth), // Width of keys, including quotes
                  align = alignmentOptions.on; // "value" or "colon"
              let targetWidth = Math.max(...widths),
                  beforeColon, afterColon, mode;
  
              if (alignmentOptions && length > 1) { // When aligning values within a group, use the alignment configuration.
                  beforeColon = alignmentOptions.beforeColon;
                  afterColon = alignmentOptions.afterColon;
                  mode = alignmentOptions.mode;
              } else {
                  beforeColon = multiLineOptions.beforeColon;
                  afterColon = multiLineOptions.afterColon;
                  mode = alignmentOptions.mode;
              }
  
              // Conditionally include one space before or after colon
              targetWidth += (align === "colon" ? beforeColon : afterColon);
  
              for (let i = 0; i < length; i++) {
                  const property = properties[i];
                  const whitespace = getPropertyWhitespace(property);
  
                  if (whitespace) { // Object literal getters/setters lack a colon
                      const width = widths[i];
  
                      if (align === "value") {
                          report(property, "key", whitespace.beforeColon, beforeColon, mode);
                          report(property, "value", whitespace.afterColon, targetWidth - width, mode);
                      } else { // align = "colon"
                          report(property, "key", whitespace.beforeColon, targetWidth - width, mode);
                          report(property, "value", whitespace.afterColon, afterColon, mode);
                      }
                  }
              }
          }
docs: Verifies correct vertical alignment of a group of properties.
  @param {ASTNode[]} properties List of Property AST nodes.
  @returns {void}