getOpenPositionsStreamByGroupsOrLogins

getOpenPositionsStreamByGroupsOrLogins: Streams client positions for multiple accounts, accepts a PBOpenPositionRequestExternal message with the systemUuid and list of logins or groups, returns a stream of PBOpenPositionsStreamResponseExternal messages containing map of client logins and position details such as ID, symbol, alias, volume, side, open time, open price, stop loss/take profit, profit, net profit, swap, commission, and current price.