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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def random_string(string_length=10):
 """Returns a random string of length string_length."""

    random = str(uuid.uuid4())  # Convert UUID format to a Python string.
    random = random.upper()  # Make all characters uppercase.
    random = random.replace("-", "")  # Remove the UUID '-'.
    return random[0:string_length]