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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 _indent(indent=0, quote='', indent_char=' '):
 """Indent util function, compute new indent_string"""

    if indent > 0:
        indent_string = ''.join((
            str(quote),
            (indent_char * (indent - len(quote)))
        ))
    else:
        indent_string = ''.join((
            ('\x08' * (-1 * (indent - len(quote)))),
            str(quote))
        )

    if len(indent_string):
        INDENT_STRINGS.append(indent_string)