{⟦
  org ↦ ⟦
    eolang ↦ ⟦
      fs ↦ ⟦
        dir(file) ↦ ⟦
          φ ↦ ξ.file,
          is-directory ↦ Φ̇.true,
          made ↦ ⟦
            φ ↦ ξ.ρ.exists.if(
              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.mkdir), ξ.ρ))
            ),
            mkdir ↦ ⟦
              λ ⤍ Lorg_eolang_fs_dir_made_mkdir
            ⟧
          ⟧,
          walk(glob) ↦ ⟦
            λ ⤍ Lorg_eolang_fs_dir_walk
          ⟧,
          deleted ↦ ⟦
            walked ↦ ξ.ρ.walk("**").at.ρ,
            len ↦ Φ̇.dataized(ξ.walked.length).as-bytes,
            φ ↦ ξ.ρ.exists.if(
              Φ̇.seq(
                Φ̇.tuple(
                  Φ̇.tuple(Φ̇.tuple.empty, ξ.rec-delete(ξ.walked, 0)), ξ.ρ
                )
              ),
              ξ.ρ
            ),
            rec-delete(tup, index) ↦ ⟦
              φ ↦ ξ.ρ.len.eq(ξ.index).if(
                Φ̇.true,
                Φ̇.seq(
                  Φ̇.tuple(
                    Φ̇.tuple(Φ̇.tuple.empty, ξ.tup.tail.deleted.exists),
                    ξ.ρ.rec-delete(ξ.tup.head, ξ.index.plus(1))
                  )
                )
              )
            ⟧
          ⟧,
          tmpfile ↦ ⟦
            φ ↦ ξ.ρ.exists.if(
              Φ̇.fs.file(Φ̇.string(ξ.touch.as-bytes)),
              Φ̇.error(
                Φ̇.txt.sprintf(
                  "Directory %s does not exist, can't create temporary file",
                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
                )
              )
            ),
            touch ↦ ⟦
              λ ⤍ Lorg_eolang_fs_dir_tmpfile_touch
            ⟧
          ⟧,
          open(mode, scope) ↦ ⟦
            φ ↦ Φ̇.error(
              Φ̇.txt.sprintf(
                "The file %s is a directory, can't open for I/O operations",
                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
              )
            )
          ⟧
        ⟧,
        λ ⤍ Package
      ⟧,
      λ ⤍ Package
    ⟧,
    λ ⤍ Package
  ⟧
⟧}