var out [p521ElementLen]byte
	return e.bytes(&out)
}

func (e *P521Element) bytes(out *[p521ElementLen]byte) []byte {
	var tmp p521NonMontgomeryDomainFieldElement
	p521FromMontgomery(&tmp, &e.x)
	p521ToBytes(out, (*p521UntypedFieldElement)(&tmp))
	p521InvertEndianness(out[:])
	return out[:]
}

// SetBytes sets e = v, where v is a big-endian 66-byte encoding, and returns e.

	out1[0] = x1
	out1[1] = x2
	out1[2] = x3
	out1[3] = x4
	out1[4] = x5
	out1[5] = x6
	out1[6] = x7
	out1[7] = x8
	out1[8] = x9
}

// p521ToBytes serializes a field element NOT in the Montgomery domain to bytes in little-endian order.
//
// Preconditions:
//
//	0 ≤ eval arg1 < m
//
// Postconditions:
//