Query: Elements affected by a given activity.Purpose: Returns the elements that are sources of basic a-flow-lines in the input list.stm_r_mx_source_of_ ba (stm_list in_list,
int *status);
Query: Elements affected by a given activity.Purpose: Returns the elements that are targets of basic a-flow-lines in the input list.stm_r_mx_influence_value_ of_an (stm_list
in_list, int *status);