prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  events not editable for groupmembers
  group member CAN edit a project but CANNOT an event related to the project. 403 error.
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `meinberlin/apps/offlineevents/rules.py`
  Content:
  ```
  1 import rules
  2 from rules.predicates import is_superuser
  3 
  4 from adhocracy4.modules import predicates as module_predicates
  5 from adhocracy4.organisations.predicates import is_initiator
  6 from adhocracy4.projects.predicates import is_moderator
  7 
  8 rules.add_perm(
  9     'meinberlin_offlineevents.list_offlineevent',
  10     is_superuser | is_initiator | is_moderator
  11 )
  12 
  13 rules.add_perm(
  14     'meinberlin_offlineevents.view_offlineevent',
  15     module_predicates.is_allowed_view_item
  16 )
  17 
  18 rules.add_perm(
  19     'meinberlin_offlineevents.add_offlineevent',
  20     is_superuser | is_initiator | is_moderator
  21 )
  22 
  23 rules.add_perm(
  24     'meinberlin_offlineevents.change_offlineevent',
  25     is_superuser | is_initiator | is_moderator
  26 )
  27
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/meinberlin/apps/offlineevents/rules.py b/meinberlin/apps/offlineevents/rules.py
  --- a/meinberlin/apps/offlineevents/rules.py
  +++ b/meinberlin/apps/offlineevents/rules.py
  @@ -4,10 +4,11 @@
   from adhocracy4.modules import predicates as module_predicates
   from adhocracy4.organisations.predicates import is_initiator
   from adhocracy4.projects.predicates import is_moderator
  +from adhocracy4.projects.predicates import is_prj_group_member
   
   rules.add_perm(
       'meinberlin_offlineevents.list_offlineevent',
  -    is_superuser | is_initiator | is_moderator
  +    is_superuser | is_initiator | is_moderator | is_prj_group_member
   )
   
   rules.add_perm(
  @@ -17,10 +18,10 @@
   
   rules.add_perm(
       'meinberlin_offlineevents.add_offlineevent',
  -    is_superuser | is_initiator | is_moderator
  +    is_superuser | is_initiator | is_moderator | is_prj_group_member
   )
   
   rules.add_perm(
       'meinberlin_offlineevents.change_offlineevent',
  -    is_superuser | is_initiator | is_moderator
  +    is_superuser | is_initiator | is_moderator | is_prj_group_member
   )
  
verification_info: {"golden_diff": "diff --git a/meinberlin/apps/offlineevents/rules.py b/meinberlin/apps/offlineevents/rules.py\n--- a/meinberlin/apps/offlineevents/rules.py\n+++ b/meinberlin/apps/offlineevents/rules.py\n@@ -4,10 +4,11 @@\n from adhocracy4.modules import predicates as module_predicates\n from adhocracy4.organisations.predicates import is_initiator\n from adhocracy4.projects.predicates import is_moderator\n+from adhocracy4.projects.predicates import is_prj_group_member\n \n rules.add_perm(\n     'meinberlin_offlineevents.list_offlineevent',\n-    is_superuser | is_initiator | is_moderator\n+    is_superuser | is_initiator | is_moderator | is_prj_group_member\n )\n \n rules.add_perm(\n@@ -17,10 +18,10 @@\n \n rules.add_perm(\n     'meinberlin_offlineevents.add_offlineevent',\n-    is_superuser | is_initiator | is_moderator\n+    is_superuser | is_initiator | is_moderator | is_prj_group_member\n )\n \n rules.add_perm(\n     'meinberlin_offlineevents.change_offlineevent',\n-    is_superuser | is_initiator | is_moderator\n+    is_superuser | is_initiator | is_moderator | is_prj_group_member\n )\n", "issue": "events not editable for groupmembers\ngroup member CAN edit a project but CANNOT an event related to the project. 403 error.\n", "before_files": [{"content": "import rules\nfrom rules.predicates import is_superuser\n\nfrom adhocracy4.modules import predicates as module_predicates\nfrom adhocracy4.organisations.predicates import is_initiator\nfrom adhocracy4.projects.predicates import is_moderator\n\nrules.add_perm(\n    'meinberlin_offlineevents.list_offlineevent',\n    is_superuser | is_initiator | is_moderator\n)\n\nrules.add_perm(\n    'meinberlin_offlineevents.view_offlineevent',\n    module_predicates.is_allowed_view_item\n)\n\nrules.add_perm(\n    'meinberlin_offlineevents.add_offlineevent',\n    is_superuser | is_initiator | is_moderator\n)\n\nrules.add_perm(\n    'meinberlin_offlineevents.change_offlineevent',\n    is_superuser | is_initiator | is_moderator\n)\n", "path": "meinberlin/apps/offlineevents/rules.py"}], "after_files": [{"content": "import rules\nfrom rules.predicates import is_superuser\n\nfrom adhocracy4.modules import predicates as module_predicates\nfrom adhocracy4.organisations.predicates import is_initiator\nfrom adhocracy4.projects.predicates import is_moderator\nfrom adhocracy4.projects.predicates import is_prj_group_member\n\nrules.add_perm(\n    'meinberlin_offlineevents.list_offlineevent',\n    is_superuser | is_initiator | is_moderator | is_prj_group_member\n)\n\nrules.add_perm(\n    'meinberlin_offlineevents.view_offlineevent',\n    module_predicates.is_allowed_view_item\n)\n\nrules.add_perm(\n    'meinberlin_offlineevents.add_offlineevent',\n    is_superuser | is_initiator | is_moderator | is_prj_group_member\n)\n\nrules.add_perm(\n    'meinberlin_offlineevents.change_offlineevent',\n    is_superuser | is_initiator | is_moderator | is_prj_group_member\n)\n", "path": "meinberlin/apps/offlineevents/rules.py"}]}