Fully Implement Long Characteristic Read/Write

[olpossum]

As of commit 949eafe in file pygatt/device.py

def exchange_mtu(self, mtu):
    """
    ATT exchange Maximum Transmission Unit.
    :param mtu: New MTU-value
    :return: New MTU, as recognized by server.
    """
    raise NotImplementedError()

This feature would be greatly beneficial to have fully implemented.

Am Using Windows10 with BlueGiga Dongle

[gegnew]

I would also love to see this implemented