types.ml
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type source_ty = [`Unix_fd | Eio.Resource.close_ty | Eio.Flow.source_ty] type sink_ty = [`Unix_fd | Eio.Resource.close_ty | Eio.Flow.sink_ty] type 'a source = ([> source_ty] as 'a) Eio.Resource.t type 'a sink = ([> sink_ty] as 'a) Eio.Resource.t