The XML element for the input variables is named input_variables. It contains for each input variable an XML element named variable. The variable element has two attributes number and default. The attribute number is the number of input variable. With the attribute default the default value of the input variable is set.
An example for the input variable element:
<input_variables> <variable number="1" default="3"/> <variable number="2" default="17.3"/> </input_variables>