def _upload_s3(self, zip_file):
s3_client = self._aws_session.client('<STR_LIT>')<EOL>transfer = boto3.s3.transfer.S3Transfer(s3_client)<EOL>transfer.upload_file(zip_file, self._config.s3_bucket,<EOL>self._config.s3_package_name())<EOL>
Uploads the lambda package to s3