def _remote_read(self):
        if self._readreq:
                self.buffer.truncate(0)
                if self.key.exists():
                    self.key.get_contents_to_file(self.buffer)
                self.buffer.seek(0)
                self._readreq = False
Read S3 contents into internal file buffer.
dataset/ETHPy150Open jcarbaugh/python-s3file/s3file.py/S3File._remote_read