source/client.c (4 lines):
	- line 243: /* TODO: respect the cleansession, clear the table when needed */
	- line 1367: /* TODO: Do we need to support resuming the connection if user connect to the same connection & endpoint and the
	- line 2523: /* TODO: timing should start from the message written into the socket, which is aws_io_message->on_completion
	- line 2791: /* TODO: timing should start from the message written into the socket, which is aws_io_message->on_completion


source/client_channel_handler.c (2 lines):
	- line 179: /* TODO: need to handle the QoS 2 message to avoid processing the message a second time */
	- line 330: /* TODO: When sending PUBLISH with QoS 2, we should be storing the data until this packet is received, at which


include/aws/mqtt/private/client_impl.h (1 line):
	- line 197: /* TODO: The subscriptions are liveing with the connection object. So if the connection disconnect from one