c# - Method with a return type that implements multiple interfaces -

currently have following:

interface imyinterfacereturntype : ienumerable<string>, idisposable { }  interface imyinterface {     imyinterfacereturntype myinterfacemethod(); } 

is there way can alter method signature of myinterfacemethod() such can express return object both ienumerable , disposable without creating intermediate interface? say:

interface imyinterface {     ienumerable<string>, idisposable myinterfacemethod(); } 

this can done generics:

interface imyinterface<t> t :ienumerable<string>, idisposable  {     t myinterfacemethod(); }