// Storage class is special, it can be replaced regardless of the
	// metadata directive, if set should be preserved and replaced
	// to the destination metadata.
	sc := r.Header.Get(xhttp.AmzStorageClass)
	if sc == "" {
		sc = r.Form.Get(xhttp.AmzStorageClass)
	}

	// if x-amz-metadata-directive says REPLACE then
	// we extract metadata from the input headers.

			req.Header.Set(k, v)
		}
		if testCase.metadataReplace {
			req.Header.Set("X-Amz-Metadata-Directive", "REPLACE")
		}
		if testCase.metadataCopy {
			req.Header.Set("X-Amz-Metadata-Directive", "COPY")
		}
		if testCase.metadataGarbage {
			req.Header.Set("X-Amz-Metadata-Directive", "Unknown")
		}
		// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic of the handler.

boots every Christmas.'

  And she went on planning to herself how she would manage it.
`They must go by the carrier,' she thought; `and how funny it'll
seem, sending presents to one's own feet!  And how odd the
directions will look!

            ALICE'S RIGHT FOOT, ESQ.
                HEARTHRUG,
                    NEAR THE FENDER,
                        (WITH ALICE'S LOVE).

Oh dear, what nonsense I'm talking!'