interfaceMembers property
      
      Map<Name, ExecutableElement> 
      get
      interfaceMembers
      
    
    
Returns a map of all members in the type's interface, keyed by the member's Name.
Note that some names are not declared directly on thisType, but are inherited from supertypes.
This method is potentially expensive, since it needs to consider all possible interface names. If you only need to look up a certain specific name (or names), use getInterfaceMember instead.
Implementation
Map<Name, ExecutableElement> get interfaceMembers;