ChecksumSHA256
	// ChecksumSHA1 indicates a SHA-1 checksum.
	ChecksumSHA1
	// ChecksumCRC32 indicates a CRC32 checksum with IEEE table.
	ChecksumCRC32
	// ChecksumCRC32C indicates a CRC32 checksum with Castagnoli table.
	ChecksumCRC32C
	// ChecksumInvalid indicates an invalid checksum.
	ChecksumInvalid
	// ChecksumMultipart indicates the checksum is from a multipart upload.
	ChecksumMultipart

			data:               bytesData,
			dataLen:            len(bytesData),
			accessKey:          credentials.AccessKey,
			secretKey:          credentials.SecretKey,
			expectedRespStatus: http.StatusOK,
			wantHeaders:        map[string]string{"x-amz-checksum-crc32c": checksumData(bytesData, crc32.New(crc32.MakeTable(crc32.Castagnoli)))},
		},
		// CRC32 as CRC32C

pkg hash, type Hash64 interface, Write([]uint8) (int, error)
pkg hash/adler32, const Size ideal-int
pkg hash/adler32, func Checksum([]uint8) uint32
pkg hash/adler32, func New() hash.Hash32
pkg hash/crc32, const Castagnoli ideal-int
pkg hash/crc32, const IEEE ideal-int
pkg hash/crc32, const Koopman ideal-int
pkg hash/crc32, const Size ideal-int
pkg hash/crc32, func Checksum([]uint8, *Table) uint32

pkg go/token, const TYPE = 84
pkg go/token, const UnaryPrec = 6
pkg go/token, const VAR = 85
pkg go/token, const XOR = 19
pkg go/token, const XOR_ASSIGN = 30
pkg hash/adler32, const Size = 4
pkg hash/crc32, const Castagnoli = 2197175160
pkg hash/crc32, const IEEE = 3988292384
pkg hash/crc32, const Koopman = 3945912366
pkg hash/crc32, const Size = 4
pkg hash/crc64, const ECMA = 14514072000185962306