UpdateIdentities.
        :param :class:`<VssJsonCollectionWrapper> <azure.devops.v5_0.identity.models.VssJsonCollectionWrapper>` identities:
        :rtype: [IdentityUpdateData]

def update_identities(self, identities):
        """UpdateIdentities.
        :param :class:`<VssJsonCollectionWrapper> <azure.devops.v5_0.identity.models.VssJsonCollectionWrapper>` identities:
        :rtype: [IdentityUpdateData]
        """
        content = self._serialize.body(identities, 'VssJsonCollectionWrapper')
        response = self._send(http_method='PUT',
                              location_id='28010c54-d0c0-4c89-a5b0-1c9e188b9fb7',
                              version='5.0',
                              content=content)
        return self._deserialize('[IdentityUpdateData]', self._unwrap_collection(response))