code: def build_alpharep_fixture():
      """
      Create a zip file with this structure:
  
      .
      ├── a.txt
      ├── b
      │   ├── c.txt
      │   ├── d
      │   │   └── e.txt
      │   └── f.txt
      ├── g
      │   └── h
      │       └── i.txt
      └── j
          ├── k.bin
          ├── l.baz
          └── m.bar
  
      This fixture has the following key characteristics:
  
      - a file at the root (a)
      - a file two levels deep (b/d/e)
      - multiple files in a directory (b/c, b/f)
      - a directory containing only a directory (g/h)
      - a directory with files of different extensions (j/klm)
  
      "alpha" because it uses alphabet
      "rep" because it's a representative example
      """
      data = io.BytesIO()
      zf = zipfile.ZipFile(data, "w")
      zf.writestr("a.txt", b"content of a")
      zf.writestr("b/c.txt", b"content of c")
      zf.writestr("b/d/e.txt", b"content of e")
      zf.writestr("b/f.txt", b"content of f")
      zf.writestr("g/h/i.txt", b"content of i")
      zf.writestr("j/k.bin", b"content of k")
      zf.writestr("j/l.baz", b"content of l")
      zf.writestr("j/m.bar", b"content of m")
      zf.filename = "alpharep.zip"
      return zf
  
imports: import io
  import itertools
  import contextlib
  import pathlib
  import pickle
  import sys
  import unittest
  import zipfile
  from ._functools import compose
  from ._itertools import Counter
  from ._test_params import parameterize, Invoked
  from test.support.os_helper import temp_dir
label_desc: Use image node_id 2 for calling a global function with example usage: build_alpharep_fixture() and returns: zf