def operations(self):
        """Instance depends on the API version:

           * 2017-03-01: :class:`Operations<azure.mgmt.containerregistry.v2017_03_01.operations.Operations>`
           * 2017-10-01: :class:`Operations<azure.mgmt.containerregistry.v2017_10_01.operations.Operations>`
           * 2018-02-01-preview: :class:`Operations<azure.mgmt.containerregistry.v2018_02_01_preview.operations.Operations>`
           * 2018-09-01: :class:`Operations<azure.mgmt.containerregistry.v2018_09_01.operations.Operations>`
        """
        api_version = self._get_api_version('operations')
        if api_version == '2017-03-01':
            from .v2017_03_01.operations import Operations as OperationClass
        elif api_version == '2017-10-01':
            from .v2017_10_01.operations import Operations as OperationClass
        elif api_version == '2018-02-01-preview':
            from .v2018_02_01_preview.operations import Operations as OperationClass
        elif api_version == '2018-09-01':
            from .v2018_09_01.operations import Operations as OperationClass
        else:
            raise NotImplementedError("APIVersion {} is not available".format(api_version))
        return OperationClass(self._client, self.config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
Instance depends on the API version:

           * 2017-03-01: :class:`Operations<azure.mgmt.containerregistry.v2017_03_01.operations.Operations>`
           * 2017-10-01: :class:`Operations<azure.mgmt.containerregistry.v2017_10_01.operations.Operations>`
           * 2018-02-01-preview: :class:`Operations<azure.mgmt.containerregistry.v2018_02_01_preview.operations.Operations>`
           * 2018-09-01: :class:`Operations<azure.mgmt.containerregistry.v2018_09_01.operations.Operations>`