How to use com.effektif.workflow.api.workflow

public Activity inputListValue(String key, Object value) {
 inputListBinding(key, new Binding().value(value));
 return this;
}
protected void setInputBindings(String key, List<Binding<?>> bindings) {

public Scope transition(String id, Transition transition) {
 transition.setId(id);
 transition(transition);
 return this;
}
public Scope transition(Transition transition) {

public Scope variable(String id, DataType type) {
 Variable variable = new Variable();
 variable.setId(id);
 variable.setType(type);
 variable(variable);
 return this;
}
public Scope variable(Variable variable) {

public Activity transitionWithConditionTo(Condition condition, String toActivityId) {
 transitionTo(new Transition()
  .condition(condition)
  .toId(toActivityId));
 return this;
}

public Activity transitionTo(String toActivityId) {
 transitionTo(new Transition().toId(toActivityId));
 return this;
}

public Activity inputValue(String key, Object value, DataType dataType) {
 inputBinding(key, new Binding().value(value).type(dataType));
 return this;
}

public Activity inputListExpression(String key, String expression) {
 inputListBinding(key, new Binding<Object>().expression(expression));
 return this;
}

public MultiInstance valuesExpression(String expression) {
 addValueBinding(new Binding().expression(expression));
 return this;
}
protected MultiInstance addValueBinding(Binding valueBinding) {

public Activity transitionToNext() {
 transitionTo(new Transition().toNext());
 return this;
}

public Activity inputExpression(String key, String expression) {
 inputBinding(key, new Binding().expression(expression));
 return this;
}

public Scope activity(String id, Activity activity) {
 activity.setId(id);
 activity(activity);
 return this;
}
public Scope activity(Activity activity) {

 @Override
 public void readBpmn(BpmnReader r) {
  super.readBpmn(r);

  BoundaryEvent boundaryEvent = new BoundaryEvent();
  boundaryEvent.readBpmn(r);

 }
}

public Activity transitionWithConditionTo(Condition condition, String toActivityId) {
 transitionTo(new Transition()
  .condition(condition)
  .toId(toActivityId));
 return this;
}

public Activity inputListValue(String key, Object value) {
 inputListBinding(key, new Binding().value(value));
 return this;
}
protected void setInputBindings(String key, List<Binding<?>> bindings) {

public Activity inputValue(String key, Object value, DataType dataType) {
 inputBinding(key, new Binding().value(value).type(dataType));
 return this;
}

public Scope variable(String id, DataType type) {
 Variable variable = new Variable();
 variable.setId(id);
 variable.setType(type);
 variable(variable);
 return this;
}
public Scope variable(Variable variable) {

public MultiInstance valuesExpression(String expression) {
 addValueBinding(new Binding().expression(expression));
 return this;
}
protected MultiInstance addValueBinding(Binding valueBinding) {

public Activity transitionToNext() {
 transitionTo(new Transition().toNext());
 return this;
}

public Scope transition(String id, Transition transition) {
 transition.setId(id);
 transition(transition);
 return this;
}
public Scope transition(Transition transition) {

public Scope activity(String id, Activity activity) {
 activity.setId(id);
 activity(activity);
 return this;
}
public Scope activity(Activity activity) {