math.add(Int32 a, Int32 b) returns Int32
id 1: result 8
id 2: result 10.0
id 3: result [3,4,5,6]
id 4: error -2 (The method math.unknown does not exist.)
id 5: error -3 (Wrong argument count in method math.add.)
id 6: error -5 (Wrong argument type in method math.add.)
id 7: error -9 (Call exception cought : Division by zero)
id 8: error -7 (RPC function 'other.add' not found)
math service unregistered
