@classmethod
def from_yamlData(cls, yamlData):
    """
        Recover contacts data from YAML data structure.

        :param yamlData: YAML data loaded using ``yaml.load`` or ``yaml.safeload``.

        :return: Constructed ``Contacts`` object.
        """
    contactObject = cls()
    if yamlData is not None:
        contactObject.__parseGroups(yamlData)
        contactObject.__parseClusters(yamlData)
    return contactObject
