Staged (async.async.async_command.Async

val async : unit Async_kernel.Deferred.t staged basic_command with_options

val async_spec : 
  ('a, unit Async_kernel.Deferred.t staged) basic_spec_command with_options

val async_or_error : 
  unit Async_kernel.Deferred.Or_error.t staged basic_command with_options

val async_spec_or_error : 
  ('a, unit Async_kernel.Deferred.Or_error.t staged) basic_spec_command
    with_options