Offers to trade with a given unit. The trade process does not begin immediately; once the server has determined both clients can trade, the TRADE_SHOW event fires.
See also Trade functions.
Signature:
InitiateTrade("unit") or InitiateTrade("name")
Arguments:
unit- A unit with which to trade (string, unitID)name- The name of a unit with which to trade; only valid for nearby units in the player's party/raid (string)