@staticmethod
def change_contact_modattr(contact, value):
    """Change contact modified attribute value
        Format of the line that triggers function call::

        CHANGE_CONTACT_MODATTR;<contact_name>;<value>

        :param contact: contact to edit
        :type contact: alignak.objects.contact.Contact
        :param value: new value to set
        :type value: str
        :return: None
        """
    contact.modified_attributes = int(value)
