Traverse(func(AST) bool)

	// Copy an AST with possible transformations.
	// If the skip function returns true, no copy is required.
	// If the copy function returns nil, no copy is required.
	// The Copy method will do the right thing if copy returns nil
	// for some components of an AST but not others, so a good
	// copy function will only return non-nil for AST values that
	// need to change.

			t.Fatalf("Test %d: Failed to create HTTP request for copy Object: <ERROR> %v", i, err)
		}
		// "X-Amz-Copy-Source" header contains the information about the source bucket and the object to copied.
		if testCase.copySourceHeader != "" {
			reqV2.Header.Set("X-Amz-Copy-Source", testCase.copySourceHeader)
		}
		if testCase.copyModifiedHeader != "" {
			reqV2.Header.Set("X-Amz-Copy-Source-If-Modified-Since", testCase.copyModifiedHeader)

		done := make(chan bool)
		go func() {
			io.Copy(rw, pr)
			close(done)
		}()
		time.Sleep(25 * time.Millisecond) // give Copy a chance to break things
		n, err := io.Copy(io.Discard, req.Body)
		if err != nil {
			t.Errorf("handler Copy: %v", err)
			return
		}
		if n != size {
			t.Errorf("handler Copy = %d; want %d", n, size)
		}
		pw.Write([]byte("hi"))
		pw.Close()

		in, out := &in.Command, &out.Command
		*out = make([]string, len(*in))
		copy(*out, *in)
	}
	if in.Args != nil {
		in, out := &in.Args, &out.Args
		*out = make([]string, len(*in))
		copy(*out, *in)
	}
	if in.Ports != nil {
		in, out := &in.Ports, &out.Ports
		*out = make([]ContainerPort, len(*in))
		copy(*out, *in)
	}
	if in.EnvFrom != nil {
		in, out := &in.EnvFrom, &out.EnvFrom

		in, out := &in.Command, &out.Command
		*out = make([]string, len(*in))
		copy(*out, *in)
	}
	if in.Args != nil {
		in, out := &in.Args, &out.Args
		*out = make([]string, len(*in))
		copy(*out, *in)
	}
	if in.Ports != nil {
		in, out := &in.Ports, &out.Ports
		*out = make([]ContainerPort, len(*in))
		copy(*out, *in)
	}
	if in.EnvFrom != nil {
		in, out := &in.EnvFrom, &out.EnvFrom

DEFAULT_BUFFER_SIZE = 4096; private void IOUtil(); public static void copy(java.io.InputStream, java.io.OutputStream) throws java.io.IOException; public static void copy(java.io.InputStream, java.io.OutputStream, int) throws java.io.IOException; public static void copy(java.io.Reader, java.io.Writer) throws java.io.IOException; public static void copy(java.io.Reader, java.io.Writer, int) throws java.io.IOException; public static void copy(java.io.InputStream, java.io.Writer) throws java.io.IOException;...

						regArgs.Ptrs[st.ireg] = v.ptr
					}
					regArgs.Ints[st.ireg] = uintptr(v.ptr)
				}
			case abiStepFloatReg:
				// Copy values to "float registers."
				if v.flag&flagIndir == 0 {
					panic("attempted to copy pointer to FP register")
				}
				offset := add(v.ptr, st.offset, "precomputed value offset")
				floatToReg(&regArgs, st.freg, st.size, offset)
			default:

   * mapping in the underlying map and determine which satisfy the filter. When a live view is
   * <i>not</i> needed, it may be faster to copy the filtered map and use the copy.
   *
   * <p><b>Warning:</b> {@code keyPredicate} must be <i>consistent with equals</i>, as documented at
   * {@link Predicate#apply}. Do not provide a predicate such as {@code

   * mapping in the underlying map and determine which satisfy the filter. When a live view is
   * <i>not</i> needed, it may be faster to copy the filtered map and use the copy.
   *
   * <p><b>Warning:</b> {@code keyPredicate} must be <i>consistent with equals</i>, as documented at
   * {@link Predicate#apply}. Do not provide a predicate such as {@code

	}

	if sc != "" {
		defaultMeta[xhttp.AmzStorageClass] = sc
	}

	// if x-amz-metadata-directive says COPY then we
	// return the default metadata.
	if isDirectiveCopy(r.Header.Get(xhttp.AmzMetadataDirective)) {
		return defaultMeta, nil
	}

	// Copy is default behavior if not x-amz-metadata-directive is set.
	return defaultMeta, nil
}