Allow
XDR Source: union AllowTrustResult switch (AllowTrustResultCode code) { case ALLOW_TRUST_SUCCESS: void; case ALLOW_TRUST_MALFORMED: case ALLOW_TRUST_NO_TRUST_LINE: case ALLOW_TRUST_TRUST_NOT_REQUIRED: case ALLOW_TRUST_CANT_REVOKE: case ALLOW_TRUST_SELF_NOT_ALLOWED: case ALLOW_TRUST_LOW_RESERVE: void; };