script merge "math.addition.exe" false 1 (param (var "[v1]" {true} "The number 1" is_null:true is_empty:true "10") (var "[v2]" {type is_double [v2]} "The number 2" is_null:true is_empty:true "20") ;) "Make an addition ..." { #Your MQL source code here...; + [v1] [v2]; } "Return the result of the addition";