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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 _parse_doc(doc=''):
 """Parse a docstring into title and description. Args ---- doc : str A docstring, optionally with a title line, separated from a description line by at least one blank line. Returns ------- title : str The first line of the docstring. description : str The rest of a docstring. """

    title, description = '', ''
    if doc:
        sp = doc.split('\n', 1)
        title = sp[0].strip()
        if len(sp) > 1:
            description = textwrap.dedent(sp[1]).strip()
    return (title, description)