prelude: :gerbil/compiler/ssxi
package: std/os

(begin
  (declare-type std/os/fd#open-raw-device (@lambda 3 #f))
  (declare-type std/os/fd#direction (@lambda 1 #f))
  (declare-type std/os/fd#fdopen (@lambda 3 #f))
  (declare-type std/os/fd#fdopen-port (@lambda 3 #f))
  (declare-type std/os/fd#fd-e (@lambda 1 #f))
  (declare-type std/os/fd#fd-io-in (@lambda 1 #f))
  (declare-type std/os/fd#fd-io-out (@lambda 1 #f))
  (declare-type std/os/fd#fd-type (@lambda 1 #f))
  (declare-type std/os/fd#fd? (@lambda 1 #f))
  (declare-type std/os/fd#fd-type? (@lambda 2 #f)))
