Add 3 Bitmex Trade Execution

Hi, my name is Lucem, I would like the following 3 functions completed

My EA executes trades on bitmex, I was using python but i would like that done on mq5 instead

Here are the functions, you can call anything you would like

1. Open a trade

The function should open a trade on bitmex. Trade type can be buy or sell. This function can return any result or information regarding the trade after opening or incase of error.

// function to place trades in the market
int openTrade(string symbol, string comment, int type, int qty){


}

2. Get Trades

This function returns a list of all the trades open at bitmex. the details include [ symbol, trade type, open time, comment, profit/loss]

// checking trades on bitmex
TradesObject getTrades[](string symbol){

        // if symbol is NULL, return trades for all the symbols

}

3. Close Trade

This function closes the trade in the symbol specified. 

closeTrades(string symbol, string comment){
        // this function will close the trade open on this symbol and with that comment
}

I wont be submitting any files since I will test this functions on a dummy EA before implementing them, so u can use any strategy to test them out.
Once delivered and tested, I will implement the code on my EA my self.