Parameter types

if > 0 then it is followed by one value, else (<0) followed by count (see websocket lentgh rules) & followed by values

 5  int8
 6  uint8
 7 char
 
 9  int16
 10  uint16
 
 13  int32 
 14  uint32
 15  float32
  
 17  int64 
 18  uint64
 19  float64
 
 128 arr