docs: private static void appendImmutableMap(
        IndentedLinesBuilder ilb, String typeParamSnippet, Map<String, String> entrySnippetPairs) {
      if (entrySnippetPairs.isEmpty()) {
        ilb.appendLineStart("ImmutableMap.", typeParamSnippet, "of()");
  
      } else {
        ilb.appendLine("ImmutableMap.", typeParamSnippet, "builder()");
        for (Map.Entry<String, String> entrySnippetPair : entrySnippetPairs.entrySet()) {
          ilb.appendLine(
              "    .put(", entrySnippetPair.getKey(), ", ", entrySnippetPair.getValue(), ")");
        }
        ilb.appendLineStart("    .build()");
      }
    }