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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 build_toc_line(toc_line_no_indent: str, no_of_indentation_spaces: int = 0) -> str: r"""Build the TOC line. :parameter toc_line_no_indent: the TOC line without indentation. :parameter no_of_indentation_spaces: the number of indentation spaces. Defaults to ``0``. :type toc_line_no_indent: str :type no_of_indentation_spaces: int :returns: toc_line, a single line of the table of contents. :rtype: str :raises: a built-in exception. """

    assert no_of_indentation_spaces >= 0

    indentation = no_of_indentation_spaces * ' '
    toc_line = indentation + toc_line_no_indent

    return toc_line