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- class method generate_ssl() added to TLS client (sync/async).
- removed certfile, keyfile, password from TLS client, please use generate_ssl()
- on_reconnect_callback() removed from clients (sync/async).
- on_connect_callback(true/false) added to async clients.
- binary framer no longer supported
- Framer.<type> renamed to FramerType.<type>
- PDU classes moved to pymodbus/pdu