Query: Modules that are sources of a given m-flow-linePurpose: Returns the modules that are sources of m-flow-lines from the input liststm_r_md_source_of_mf (stm_list in_list,
int *status);
Query: Modules that are targets of a given m-flow-linePurpose: Returns the modules that are targets of m-flow-lines from the input liststm_r_md_target_of_mf (stm_list in_list,
int *status);