gets the number of registered observers . concode_field_sep LinkedList<Value> values concode_elem_sep Map<BranchPoint,LinkedList<Value>> savedValues concode_elem_sep Reference rootObjectReference concode_elem_sep Engine engine concode_elem_sep LinkedList<Signature> varSigs concode_elem_sep LinkedList<ExecutionObserver> obs concode_elem_sep String rootClassName concode_field_sep void init concode_elem_sep void addObserver concode_elem_sep void saveObservedVariablesValues concode_elem_sep boolean hasObservers concode_elem_sep Value getObservedVariableValue concode_elem_sep void restoreObservedVariablesValues concode_elem_sep void notifyObservers
int function ( ) { return ( this . varSigs . size ( ) ) ; }