func extractMetadataFromReq(ctx context.Context, r *http.Request) (metadata map[string]string, err error) {
	return extractMetadata(ctx, textproto.MIMEHeader(r.Form), textproto.MIMEHeader(r.Header))
}

func extractMetadata(ctx context.Context, mimesHeader ...textproto.MIMEHeader) (metadata map[string]string, err error) {
	metadata = make(map[string]string)

	for _, hdr := range mimesHeader {
		// Extract all query values.

        return Objects.toString(source, "");
    }

    @Override
    public String toString() {
        return String.valueOf(model);
    }

public class BiMapGenerators {
  public static class ImmutableBiMapGenerator extends TestStringBiMapGenerator {
    @Override
    protected BiMap<String, String> create(Entry<String, String>[] entries) {
      ImmutableBiMap.Builder<String, String> builder = ImmutableBiMap.builder();
      for (Entry<String, String> entry : entries) {
        checkNotNull(entry);
        builder.put(entry.getKey(), entry.getValue());
      }
      return builder.build();

    /** {@inheritDoc} */
    public String getGroupId() {
        return artifact.getGroupId();
    }

    /** {@inheritDoc} */
    public String getArtifactId() {
        return artifact.getArtifactId();
    }

    /** {@inheritDoc} */
    public String getVersion() {
        return artifact.getVersion();
    }

    /** {@inheritDoc} */
    public void setVersion(String version) {

     */
    static boolean isBadFileInMergeCommit(String filePath, String mergeCommit, String masterCommit, String releaseCommit) {
        try {
            List<String> mergeCommitFileLines = showFileOnCommit(mergeCommit, filePath).readLines()
            List<String> masterCommitFileLines = showFileOnCommit(masterCommit, filePath).readLines()
            List<String> releaseCommitFileLines = showFileOnCommit(releaseCommit, filePath).readLines()

      @Override
      protected Multiset<String> create(String[] elements) {
        return unmodifiableMultiset(LinkedHashMultiset.create(asList(elements)));
      }

      @Override
      public List<String> order(List<String> insertionOrder) {
        List<String> order = new ArrayList<>();
        for (String s : insertionOrder) {
          int index = order.indexOf(s);

    private String index = null;

    private int size = 10;

    private final List<String> tags = new ArrayList<>();

    private final List<String> roles = new ArrayList<>();

    private final List<String> fields = new ArrayList<>();

    private final List<String> languages = new ArrayList<>();

    private String seed = String.valueOf(System.currentTimeMillis());

			clause.Expr{SQL: result.SQL, Vars: result.Vars}.Build(stmt)
			if stmt.SQL.String() != result.Result {
				t.Errorf("generated SQL is not equal, expects %v, but got %v", result.Result, stmt.SQL.String())
			}
		})
	}
}

func TestNamedExpr(t *testing.T) {
	type Base struct {
		Name2 string
	}

	type NamedArgument struct {
		Name1 string

                                "anyOf": [{"type": "string"}, {"type": "null"}],
                            }
                        )
                        | IsDict(
                            # TODO: remove when deprecating Pydantic v1
                            {"title": "Full Name", "type": "string"}
                        ),
                        "password": {"title": "Password", "type": "string"},
                    },

        public Path topDirectory;

        @Nullable
        public Path rootDirectory;

        public List<CoreExtension> extensions;
        public Options options;

        public Map<String, String> extraInterpolationSource() {
            Map<String, String> extra = new HashMap<>();
            extra.put("session.topDirectory", topDirectory.toString());
            if (rootDirectory != null) {