interface foo {
  void hello( in string name );
};

struct S {
  long x;
  foo obj;
};

typedef sequence<foo> fooSeq;

typedef Object ObjectAlias;
typedef sequence<Object> Objects;

interface bar {
  foo run( in foo obj );
  void run1( in ObjectAlias obj );
  void run2( in S s );
  void run3( in fooSeq s );
};