(self, expr=r"(?P<text>\w+|[*]):", remove_unknown=True)
:param expr: the regular expression to use for tagging fields.
        :param remove_unknown: if True, converts field specifications for
            fields that aren't in the schema into regular text.
:param expr: the regular expression to use for tagging fields.
        :param remove_unknown: if True, converts field specifications for
            fields that aren't in the schema into regular text.
: param expr : the regular expression to use for tagging fields . : param remove_unknown : if True converts field specifications for fields that aren t in the schema into regular text .
def __init__(self, expr=r"(?P<text>\w+|[*]):", remove_unknown=True):
        """
        :param expr: the regular expression to use for tagging fields.
        :param remove_unknown: if True, converts field specifications for
            fields that aren't in the schema into regular text.
        """

        self.expr = expr
        self.removeunknown = remove_unknown
def __init__ ( self , expr = r"(?P<text>\w+|[*]):" , remove_unknown = True ) : self . expr = expr self . removeunknown = remove_unknown