_LengthAndSeekToZero
_LengthAndSeekToZero(requestEnvelopeData), 0, message);
_LengthAndSeekToZero(requestEnvelopeData), 0, message);
_LengthAndSeekToZero(requestEnvelopeData), 0, message);
requestEnvelopeData, _LengthAndSeekToZero(requestEnvelopeData), NEEDS_AUTHORIZATION,
_LengthAndSeekToZero(requestEnvelopeData), NEEDS_AUTHORIZATION, message);
_LengthAndSeekToZero(requestEnvelopeData), NEEDS_AUTHORIZATION, responsePayload);
_LengthAndSeekToZero(requestEnvelopeData), 0, message);
_LengthAndSeekToZero(requestEnvelopeData), NEEDS_AUTHORIZATION, message);
_LengthAndSeekToZero(requestEnvelopeData), NEEDS_AUTHORIZATION, message);
_LengthAndSeekToZero(requestEnvelopeData), 0, message);
_LengthAndSeekToZero(requestEnvelopeData), 0, message);
_LengthAndSeekToZero(requestEnvelopeData), 0, message);
_LengthAndSeekToZero(requestEnvelopeData), 0, message);
_LengthAndSeekToZero(requestEnvelopeData), 0, message);
static off_t _LengthAndSeekToZero(BPositionIO* data);