How to use the pypistats._paramify function in pypistats

def test__paramify_string(self):
        # Arrange
        period = "day"

        # Act
        param = pypistats._paramify("period", period)

        # Assert
        self.assertEqual(param, "&period=day")

def test__paramify_float(self):
        # Arrange
        version = 3.7

        # Act
        param = pypistats._paramify("version", version)

        # Assert
        self.assertEqual(param, "&version=3.7")

def test__paramify_none(self):
        # Arrange
        period = None

        # Act
        param = pypistats._paramify("period", period)

        # Assert
        self.assertEqual(param, "")

def test__paramify_bool(self):
        # Arrange
        mirrors = True

        # Act
        param = pypistats._paramify("mirrors", mirrors)

        # Assert
        self.assertEqual(param, "&mirrors=true")

def test__paramify_int(self):
        # Arrange
        version = 3

        # Act
        param = pypistats._paramify("version", version)

        # Assert
        self.assertEqual(param, "&version=3")