def _parse(self, stream, context, path):
byte = byte2int(stream_read(stream, 1, path))
if byte & 0x80 == 0:
return byte
num_bytes = byte & ~0x80
encoded_len = stream_read(stream, num_bytes, path)
num = 0
for len_byte in iterateints(encoded_len):
num = num << 8 + len_byte
return num
def _parse(self, stream, context, path):
modulus = self.modulus(context) if callable(self.modulus) else self.modulus
stream_read(stream, (modulus - len(stream.rbuffer)) % modulus)