code: def pytest_put_strings_case(meta=None):
      put_prefix = os.path.join(S3ROOT, PUT_PREFIX)
      data = [
          "unicode: \u523a\u8eab means sashimi",
          b"bytes: \x00\x01\x02",
          "just a string",
      ]
      expected = {}
      objs = []
      for text in data:
          blob = to_bytes(text)
          checksum = sha1(blob).hexdigest()
          key = str(uuid4())
          expected[os.path.join(put_prefix, key)] = {
              None: ExpectedResult(
                  size=len(blob),
                  checksum=checksum,
                  content_type=None,
                  metadata=None,
                  range=None,
              )
          }
          objs.append((key, text))
          if meta is not None:
              for content_type, usermeta in meta.values():
                  key = str(uuid4())
                  expected[os.path.join(put_prefix, key)] = {
                      None: ExpectedResult(
                          size=len(blob),
                          checksum=checksum,
                          content_type=content_type,
                          metadata=usermeta,
                          range=None,
                      )
                  }
                  objs.append(
                      S3PutObject(
                          key=key,
                          value=text,
                          content_type=content_type,
                          metadata=usermeta,
                      )
                  )
      return {
          "argvalues": [(put_prefix, objs, expected)],
          "ids": ["put_strings"],
      }
  
imports: import os
  import sys
  import zlib
  import json
  from uuid import uuid4
  from hashlib import sha1
  from collections import namedtuple
  from metaflow.plugins.datatools.s3 import S3PutObject
  from metaflow.util import to_fileobj, to_bytes, url_quote
  import numpy
  from ..None import s3client, S3ROOT
label_desc: Use image node_id 10 for calling a global function with example usage: pytest_put_strings_case(meta) and returns: dict