How to use the junitparser.junitparser.Properties function in junitparser

def add_property(self, name, value):
        """Adds a property to the testsuite.

        See :class:`Property` and :class:`Properties`
        """

        props = self.child(Properties)
        if props is None:
            props = Properties()
            self.append(props)
        prop = Property(name, value)
        props.add_property(prop)

def remove_property(self, property_):
        """Removes a property."""
        props = self.child(Properties)
        if props is None:
            return
        for prop in props:
            if prop == property_:
                props.remove(property_)

def add_property(self, name, value):
        """Adds a property to the testsuite/testcase.

        See :class:`Property` and :class:`Properties`
        """
        props = self.child(Properties)
        if props is None:
            props = Properties()
            self.append(props)
        prop = Property(name, value)
        props.add_property(prop)

def properties(self):
        """Iterates through all properties."""
        props = self.child(Properties)
        if props is None:
            return
        for prop in props:
            yield prop

def __init__(self):
        super(Properties, self).__init__(self._tag)