Inspect the docstring and get the comments for each parameter.

def _docspec_comments(obj) -> Dict[str, str]:
    """
    Inspect the docstring and get the comments for each parameter.
    """
    # Sometimes our docstring is on the class, and sometimes it's on the initializer,
    # so we've got to check both.
    class_docstring = getattr(obj, '__doc__', None)
    init_docstring = getattr(obj.__init__, '__doc__', None) if hasattr(obj, '__init__') else None

    docstring = class_docstring or init_docstring or ''

    doc = NumpyDocString(docstring)
    params = doc["Parameters"]
    comments: Dict[str, str] = {}

    for line in params:
        # It looks like when there's not a space after the parameter name,
        # numpydocstring parses it incorrectly.
        name_bad = line[0]
        name = name_bad.split(":")[0]

        # Sometimes the line has 3 fields, sometimes it has 4 fields.
        comment = "\n".join(line[-1])

        comments[name] = comment

    return comments