@NotNull
    private static @Nls
    String getSourceMapSourceEmbeddingDescription(@Nullable String sourceMapSourceEmbeddingId) {
        if (sourceMapSourceEmbeddingId == null) return "";
        String result = sourceMapSourceEmbeddingDescriptions.get(sourceMapSourceEmbeddingId);
        assert result != null : "Source map source embedding mode " + sourceMapSourceEmbeddingId +
                                " was not added to combobox, therefore it should not be here";
        return result;
    }
@NotNull
    private static @Nls
    String getSourceMapSourceEmbeddingDescription(@Nullable String sourceMapSourceEmbeddingId)