@utilities.arguments_not_none<EOL><INDENT>def get_asset_content_form_for_update(self, asset_content_id):<DEDENT>
<EOL>from dlkit.abstract_osid.id.primitives import Id as ABCId<EOL>from .objects import AssetContentForm<EOL>collection = JSONClientValidated('<STR_LIT>',<EOL>collection='<STR_LIT>',<EOL>runtime=self._runtime)<EOL>if not isinstance(asset_content_id, ABCId):<EOL><INDENT>raise errors.InvalidArgument('<STR_LIT>')<EOL><DEDENT>document = collection.find_one({'<STR_LIT>': ObjectId(asset_content_id.get_identifier())})<EOL>for sub_doc in document['<STR_LIT>']:  <EOL><INDENT>if sub_doc['<STR_LIT>'] == ObjectId(asset_content_id.get_identifier()):<EOL><INDENT>result = sub_doc<EOL><DEDENT><DEDENT>obj_form = AssetContentForm(<EOL>osid_object_map=result,<EOL>runtime=self._runtime,<EOL>proxy=self._proxy)<EOL>obj_form._for_update = True<EOL>self._forms[obj_form.get_id().get_identifier()] = not UPDATED<EOL>return obj_form<EOL>
Gets the asset content form for updating an existing asset content.

        A new asset content form should be requested for each update
        transaction.

        arg:    asset_content_id (osid.id.Id): the ``Id`` of the
                ``AssetContent``
        return: (osid.repository.AssetContentForm) - the asset content
                form
        raise:  NotFound - ``asset_content_id`` is not found
        raise:  NullArgument - ``asset_content_id`` is ``null``
        raise:  OperationFailed - unable to complete request
        *compliance: mandatory -- This method must be implemented.*