<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hey everyone,<div><br></div><div>I can't find contracts for "sequenceof" or "streamof" for <u><i>non-typed</i></u> (standard) Racket that would do much the same thing as listof and vectorof.</div><div><br></div><div>Is there a trivial way to construct these types of contracts and use them in non-typed Racket?</div><div><br></div><div>Thanks.</div><div>Christopher</div></body></html>