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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 fix_indentation(code, base_indentation=None, correct_indentation="", modifiers=(True, True)):
 """Replaces base_indentation at beginning of lines with correct_indentation. If base_indentation is None, tries to find it using get_base_indentation. modifiers are passed to re_line_and_indentation. See there for doc. """

    if base_indentation is None:
        base_indentation = get_base_indentation(code, modifiers[0])
    return re_line_and_indentation(base_indentation, modifiers).sub(
        "\n" + correct_indentation, code)