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import pickle
import zlib
def send_data(conn, data, settings, extra_data={}):
encryption, encoding, headersize = settings
data.update(extra_data)
pickled_msg = pickle.dumps(data)
compressed_msg = zlib.compress(pickled_msg, 5)
encrypted_msg = encryption.do_encrypt(compressed_msg)
final_msg = bytes(f'{len(encrypted_msg):<{headersize}}', encoding) + encrypted_msg
conn.send(final_msg)
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