VarArgList

List of variable parameters used by this expression. If the expression is a flow model, the list must contain all variable parameters used by all expressions in the order of their consumption.

The value of the variable parameter will be inserted into the expression by replacing all ‘@?’ placeholders with the actual value. This concept is similar to the variable argument of a trial definition, where all ?-symbols will be replaced by actual values during runtime.

Variable parameters are different from Variables. A variable parameter (‘@?’ is constant text which can be injected into an expression via a variable argument. In contrast, a Variable has a value which is set by a mathematical expression using an assignment operator (‘=’). The new value can be used as a variable argument of any trial command by using the Variable name instead of a constant value.