You can search for identifiers within the package.
in-package search v0.2.0
include Toplevel_options
include Common_options
val _absname : unit -> unit
val _alert : string -> unit
val _I : string -> unit
val _labels : unit -> unit
val _alias_deps : unit -> unit
val _no_alias_deps : unit -> unit
val _app_funct : unit -> unit
val _no_app_funct : unit -> unit
val _noassert : unit -> unit
val _nolabels : unit -> unit
val _nostdlib : unit -> unit
val _nopervasives : unit -> unit
val _open : string -> unit
val _ppx : string -> unit
val _principal : unit -> unit
val _no_principal : unit -> unit
val _rectypes : unit -> unit
val _no_rectypes : unit -> unit
val _safe_string : unit -> unit
val _short_paths : unit -> unit
val _strict_sequence : unit -> unit
val _no_strict_sequence : unit -> unit
val _strict_formats : unit -> unit
val _no_strict_formats : unit -> unit
val _unboxed_types : unit -> unit
val _no_unboxed_types : unit -> unit
val _unsafe : unit -> unit
val _unsafe_string : unit -> unit
val _version : unit -> unit
val _vnum : unit -> unit
val _w : string -> unit
val _warn_error : string -> unit
val _warn_help : unit -> unit
val _dno_unique_ids : unit -> unit
val _dunique_ids : unit -> unit
val _dsource : unit -> unit
val _dparsetree : unit -> unit
val _dtypedtree : unit -> unit
val _drawlambda : unit -> unit
val _dlambda : unit -> unit
val anonymous : string -> unit
val _init : string -> unit
val _noinit : unit -> unit
val _no_version : unit -> unit
val _noprompt : unit -> unit
val _nopromptcont : unit -> unit
val _stdin : unit -> unit
val _args : string -> string array
val _args0 : string -> string array
val _color : string -> unit
val _error_style : string -> unit
val _dinstr : unit -> unit