code: def reqMktDepth(self, tickerId, contract, numRows, mktDepthOptions):
          
          return _swigibpy.EClientSocketBase_reqMktDepth(self, tickerId, contract, numRows, mktDepthOptions)
docs: reqMktDepth(EClientSocketBase self, TickerId tickerId, Contract contract, int numRows, TagValueListSPtr const & mktDepthOptions)