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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 black_invariant(text, chars=None):
 """Remove characters that may be changed when reformatting the text with black"""

    if chars is None:
        chars = [' ', '\t', '\n', ',', "'", '"', '(', ')', '\\']

    for char in chars:
        text = text.replace(char, '')
    return text