module Transform: sig .. end
val string_to_item : ?filename:string ->
       unit ->
       (string, (Biocaml_fastq.item, [> Biocaml_fastq.Error.t ]) Core.Result.t)
       Biocaml_transform.t
Create a full stoppable Biocaml_transform.t from arbitrary strings to
    item values.
val item_to_string : unit -> (Biocaml_fastq.item, string) Biocaml_transform.t
Create a full stoppable Biocaml_transform.t from item
    values to strings.
val trim : [ `beginning of int | `ending of int ] ->
       (Biocaml_fastq.item,
        (Biocaml_fastq.item, [> `invalid_size of int ]) Core.Result.t)
       Biocaml_transform.t
Create a full stoppable Biocaml_transform.t that trims FASTQ
    items.