pub fn recover_with_context(
message: &Scalar,
signature: &Signature,
recovery_id: &RecoveryId,
context: &ECMultContext,
) -> Result<Affine, Secp256k1Err>pub fn recover_with_context(
message: &Scalar,
signature: &Signature,
recovery_id: &RecoveryId,
context: &ECMultContext,
) -> Result<Affine, Secp256k1Err>