// There is no minimum size.
var GetByteBuffer = func() []byte {
	b := *internalByteBuffer.Get()
	return b[:0]
}

// GetByteBufferCap returns a length 0 byte buffer with at least the given capacity.
func GetByteBufferCap(wantSz int) []byte {
	if wantSz < defaultBufferSize {
		b := GetByteBuffer()[:0]
		if cap(b) >= wantSz {
			return b
		}
		PutByteBuffer(b)
	}