val blit : src:([> Core__Import.read ], seek) t -> dst:([> Core__Import.write ], no_seek) t -> dst_pos:int -> len:int -> unit
val blito : src:([> Core__Import.read ], seek) t -> ?src_len:int -> dst:([> Core__Import.write ], no_seek) t -> ?dst_pos:int -> unit -> unit
val unsafe_blit : src:([> Core__Import.read ], seek) t -> dst:([> Core__Import.write ], no_seek) t -> dst_pos:int -> len:int -> unit
val sub : ([> Core__Import.read ], seek) t -> len:int -> (_, _) t
val subo : ?len:int -> ([> Core__Import.read ], seek) t -> (_, _) t
val blit_maximal : src:([> Core__Import.read ], seek) t -> dst:([> Core__Import.write ], no_seek) t -> ?dst_pos:int -> unit -> int