def METHOD_NAME(self):
    is_blank_line = ParserSupport.is_blank_line
    self.assertTrue(is_blank_line("\n"))
    self.assertTrue(is_blank_line("\r\n"))
    self.assertTrue(is_blank_line("\r"))
    self.assertTrue(is_blank_line(""))
    self.assertTrue(is_blank_line("", allow_spaces=1))
    self.assertTrue(is_blank_line("", allow_spaces=0))
    self.assertTrue(is_blank_line(string.whitespace, allow_spaces=1))
    self.assertFalse(is_blank_line("hello"))
    self.assertFalse(is_blank_line("hello", allow_spaces=1))
    self.assertFalse(is_blank_line("hello", allow_spaces=0))
    self.assertFalse(is_blank_line(string.whitespace, allow_spaces=0))