method PrivateSecp256r1.prototype.addChaCha20Recipient PrivateSecp256r1.prototype.addChaCha20Recipient(verification_method: DIDURL,jwe: JWE,recipient: PublicSecp256r1,): JWERecipient Parameters verification_method: DIDURL jwe: JWE recipient: PublicSecp256r1 Return Type JWERecipient