if s3Err != ErrNone {
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
			return
		}
	case authTypeStreamingUnsignedTrailer:
		// Initialize stream chunked reader with optional trailers.
		rd, s3Err = newUnsignedV4ChunkedReader(r, true)
		if s3Err != ErrNone {
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
			return
		}
	case authTypeSignedV2, authTypePresignedV2:

//go:build go1.10 && !go1.13

package bidi

// UnicodeVersion is the Unicode version from which the tables in this package are derived.
const UnicodeVersion = "10.0.0"

// xorMasks contains masks to be xor-ed with brackets to get the reverse
// version.
var xorMasks = []int32{ // 8 elements
	0, 1, 6, 7, 3, 15, 29, 63,
} // Size: 56 bytes

// lookup returns the trie value for the first UTF-8 encoding in s and

					Providers: []*telemetry.ProviderRef{
						{Name: "a"},
						{Name: "b"},
					},
				}},
			},
			"", "multiple providers",
		},
		{
			"multiple tracers",
			&telemetry.Telemetry{
				Tracing: []*telemetry.Tracing{{}, {}},
			},
			"", "multiple tracing",
		},
		{
			"bad randomSamplingPercentage",
			&telemetry.Telemetry{

//go:build go1.13 && !go1.14

package bidi

// UnicodeVersion is the Unicode version from which the tables in this package are derived.
const UnicodeVersion = "11.0.0"

// xorMasks contains masks to be xor-ed with brackets to get the reverse
// version.
var xorMasks = []int32{ // 8 elements
	0, 1, 6, 7, 3, 15, 29, 63,
} // Size: 56 bytes

// lookup returns the trie value for the first UTF-8 encoding in s and

//go:build go1.16 && !go1.21

package bidi

// UnicodeVersion is the Unicode version from which the tables in this package are derived.
const UnicodeVersion = "13.0.0"

// xorMasks contains masks to be xor-ed with brackets to get the reverse
// version.
var xorMasks = []int32{ // 8 elements
	0, 1, 6, 7, 3, 15, 29, 63,
} // Size: 56 bytes

// lookup returns the trie value for the first UTF-8 encoding in s and

//go:build !go1.10

package bidi

// UnicodeVersion is the Unicode version from which the tables in this package are derived.
const UnicodeVersion = "9.0.0"

// xorMasks contains masks to be xor-ed with brackets to get the reverse
// version.
var xorMasks = []int32{ // 8 elements
	0, 1, 6, 7, 3, 15, 29, 63,
} // Size: 56 bytes

// lookup returns the trie value for the first UTF-8 encoding in s and

//go:build go1.14 && !go1.16

package bidi

// UnicodeVersion is the Unicode version from which the tables in this package are derived.
const UnicodeVersion = "12.0.0"

// xorMasks contains masks to be xor-ed with brackets to get the reverse
// version.
var xorMasks = []int32{ // 8 elements
	0, 1, 6, 7, 3, 15, 29, 63,
} // Size: 56 bytes

// lookup returns the trie value for the first UTF-8 encoding in s and

//go:build go1.21

package bidi

// UnicodeVersion is the Unicode version from which the tables in this package are derived.
const UnicodeVersion = "15.0.0"

// xorMasks contains masks to be xor-ed with brackets to get the reverse
// version.
var xorMasks = []int32{ // 8 elements
	0, 1, 6, 7, 3, 15, 29, 63,
} // Size: 56 bytes

// lookup returns the trie value for the first UTF-8 encoding in s and

                to the location where the OpenAPI document is being served. Variable
                substitutions will be made when a variable is named in `{`brackets`}`.
                * `description`: An optional string describing the host designated by
                the URL. [CommonMark syntax](https://commonmark.org/) MAY be used for
                rich text representation.

</pre>


<h2 id="Blocks">Blocks</h2>

<p>
A <i>block</i> is a possibly empty sequence of declarations and statements
within matching brace brackets.
</p>

<pre class="ebnf">
Block = "{" StatementList "}" .
StatementList = { Statement ";" } .
</pre>

<p>
In addition to explicit blocks in the source code, there are implicit blocks: