0. #lang racket/base
1.  
2. (module test-struct racket/base
3.         (provide (rename-out [egg shell])
4.                  (except-out (struct-out egg) egg))
5.         (struct egg (size color)))
6.  
7. (require 'test-struct)
8.  
9. (procedure? egg)

=>

egg: undefined;

cannot reference an identifier before its definition

in module: 'm