**DEPRECATED** - Initialize an unordered batch of write operations.

        Operations will be performed on the server in arbitrary order,
        possibly in parallel. All operations will be attempted.

        :Parameters:
          - `bypass_document_validation`: (optional) If ``True``, allows the
            write to opt-out of document level validation. Default is
            ``False``.

        Returns a :class:`~pymongo.bulk.BulkOperationBuilder` instance.

        See :ref:`unordered_bulk` for examples.

        .. note:: `bypass_document_validation` requires server version
          **>= 3.2**

        .. versionchanged:: 3.5
           Deprecated. Use :meth:`~pymongo.collection.Collection.bulk_write`
           instead.

        .. versionchanged:: 3.2
           Added bypass_document_validation support

        .. versionadded:: 2.7

def initialize_unordered_bulk_op(self, bypass_document_validation=False):
        """**DEPRECATED** - Initialize an unordered batch of write operations.

        Operations will be performed on the server in arbitrary order,
        possibly in parallel. All operations will be attempted.

        :Parameters:
          - `bypass_document_validation`: (optional) If ``True``, allows the
            write to opt-out of document level validation. Default is
            ``False``.

        Returns a :class:`~pymongo.bulk.BulkOperationBuilder` instance.

        See :ref:`unordered_bulk` for examples.

        .. note:: `bypass_document_validation` requires server version
          **>= 3.2**

        .. versionchanged:: 3.5
           Deprecated. Use :meth:`~pymongo.collection.Collection.bulk_write`
           instead.

        .. versionchanged:: 3.2
           Added bypass_document_validation support

        .. versionadded:: 2.7
        """
        warnings.warn("initialize_unordered_bulk_op is deprecated",
                      DeprecationWarning, stacklevel=2)
        return BulkOperationBuilder(self, False, bypass_document_validation)