$dcc.protocol
Returns the protocol of the specified DCC session
Usage
<string> $dcc.protocol
<string> $dcc.protocol(<dcc_id:uint>)
Description
Returns the string describing the protocol of the DCC specified by <dcc_id>.
If <dcc_id> is omitted then the DCC Session associated with the current window is assumed.
If <dcc_id> is not a valid DCC session identifier (or it is omitted and the current window has no associated DCC session) then this function prints a warning and returns an empty string.
See the dcc module documentation for more information.

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