We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Update CI files for branch 3.39


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `pulpcore/app/serializers/task.py`
Content:
```
1 from gettext import gettext as _
2 
3 from rest_framework import serializers
4 
5 from pulpcore.app import models
6 from pulpcore.app.serializers import (
7     IdentityField,
8     ModelSerializer,
9     ProgressReportSerializer,
10     RelatedField,
11 )
12 from pulpcore.app.util import get_viewset_for_model
13 
14 
15 class CreatedResourceSerializer(RelatedField):
16 
17     def to_representation(self, data):
18         # If the content object was deleted
19         if data.content_object is None:
20             return None
21         try:
22             if not data.content_object.complete:
23                 return None
24         except AttributeError:
25             pass
26         viewset = get_viewset_for_model(data.content_object)
27 
28         # serializer contains all serialized fields because we are passing
29         # 'None' to the request's context
30         serializer = viewset.serializer_class(data.content_object, context={'request': None})
31         return serializer.data.get('_href')
32 
33     class Meta:
34         model = models.CreatedResource
35         fields = []
36 
37 
38 class TaskSerializer(ModelSerializer):
39     _href = IdentityField(view_name='tasks-detail')
40     state = serializers.CharField(
41         help_text=_("The current state of the task. The possible values include:"
42                     " 'waiting', 'skipped', 'running', 'completed', 'failed' and 'canceled'."),
43         read_only=True
44     )
45     name = serializers.CharField(
46         help_text=_("The name of task.")
47     )
48     started_at = serializers.DateTimeField(
49         help_text=_("Timestamp of the when this task started execution."),
50         read_only=True
51     )
52     finished_at = serializers.DateTimeField(
53         help_text=_("Timestamp of the when this task stopped execution."),
54         read_only=True
55     )
56     non_fatal_errors = serializers.JSONField(
57         help_text=_("A JSON Object of non-fatal errors encountered during the execution of this "
58                     "task."),
59         read_only=True
60     )
61     error = serializers.JSONField(
62         help_text=_("A JSON Object of a fatal error encountered during the execution of this "
63                     "task."),
64         read_only=True
65     )
66     worker = RelatedField(
67         help_text=_("The worker associated with this task."
68                     " This field is empty if a worker is not yet assigned."),
69         read_only=True,
70         view_name='workers-detail'
71     )
72     parent = RelatedField(
73         help_text=_("The parent task that spawned this task."),
74         read_only=True,
75         view_name='tasks-detail'
76     )
77     spawned_tasks = RelatedField(
78         help_text=_("Any tasks spawned by this task."),
79         many=True,
80         read_only=True,
81         view_name='tasks-detail'
82     )
83     progress_reports = ProgressReportSerializer(
84         many=True,
85         read_only=True
86     )
87     created_resources = CreatedResourceSerializer(
88         help_text=_('Resources created by this task.'),
89         many=True,
90         read_only=True,
91         view_name='None'  # This is a polymorphic field. The serializer does not need a view name.
92     )
93 
94     class Meta:
95         model = models.Task
96         fields = ModelSerializer.Meta.fields + ('state', 'name', 'started_at',
97                                                 'finished_at', 'non_fatal_errors', 'error',
98                                                 'worker', 'parent', 'spawned_tasks',
99                                                 'progress_reports', 'created_resources')
100 
101 
102 class MinimalTaskSerializer(TaskSerializer):
103 
104     class Meta:
105         model = models.Task
106         fields = ModelSerializer.Meta.fields + ('name', 'state', 'started_at', 'finished_at',
107                                                 'worker', 'parent')
108 
109 
110 class TaskCancelSerializer(ModelSerializer):
111     state = serializers.CharField(
112         help_text=_("The desired state of the task. Only 'canceled' is accepted."),
113     )
114 
115     class Meta:
116         model = models.Task
117         fields = ('state',)
118 
119 
120 class ContentAppStatusSerializer(ModelSerializer):
121     name = serializers.CharField(
122         help_text=_('The name of the worker.'),
123         read_only=True
124     )
125     last_heartbeat = serializers.DateTimeField(
126         help_text=_('Timestamp of the last time the worker talked to the service.'),
127         read_only=True
128     )
129 
130     class Meta:
131         model = models.ContentAppStatus
132         fields = ('name', 'last_heartbeat')
133 
134 
135 class WorkerSerializer(ModelSerializer):
136     _href = IdentityField(view_name='workers-detail')
137 
138     name = serializers.CharField(
139         help_text=_('The name of the worker.'),
140         read_only=True
141     )
142     last_heartbeat = serializers.DateTimeField(
143         help_text=_('Timestamp of the last time the worker talked to the service.'),
144         read_only=True
145     )
146     online = serializers.BooleanField(
147         help_text=_('True if the worker is considered online, otherwise False'),
148         read_only=True
149     )
150     missing = serializers.BooleanField(
151         help_text=_('True if the worker is considerd missing, otherwise False'),
152         read_only=True
153     )
154     # disable "created" because we don't care about it
155     created = None
156 
157     class Meta:
158         model = models.Worker
159         _base_fields = tuple(set(ModelSerializer.Meta.fields) - set(['created']))
160         fields = _base_fields + ('name', 'last_heartbeat', 'online', 'missing')
161
```
--- 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()

```

diff --git a/pulpcore/app/serializers/task.py b/pulpcore/app/serializers/task.py
--- a/pulpcore/app/serializers/task.py
+++ b/pulpcore/app/serializers/task.py
@@ -58,7 +58,8 @@
                     "task."),
         read_only=True
     )
-    error = serializers.JSONField(
+    error = serializers.DictField(
+        child=serializers.JSONField(),
         help_text=_("A JSON Object of a fatal error encountered during the execution of this "
                     "task."),
         read_only=True

{"golden_diff": "diff --git a/pulpcore/app/serializers/task.py b/pulpcore/app/serializers/task.py\n--- a/pulpcore/app/serializers/task.py\n+++ b/pulpcore/app/serializers/task.py\n@@ -58,7 +58,8 @@\n                     \"task.\"),\n         read_only=True\n     )\n-    error = serializers.JSONField(\n+    error = serializers.DictField(\n+        child=serializers.JSONField(),\n         help_text=_(\"A JSON Object of a fatal error encountered during the execution of this \"\n                     \"task.\"),\n         read_only=True\n", "issue": "Update CI files for branch 3.39\n\n", "before_files": [{"content": "from gettext import gettext as _\n\nfrom rest_framework import serializers\n\nfrom pulpcore.app import models\nfrom pulpcore.app.serializers import (\n    IdentityField,\n    ModelSerializer,\n    ProgressReportSerializer,\n    RelatedField,\n)\nfrom pulpcore.app.util import get_viewset_for_model\n\n\nclass CreatedResourceSerializer(RelatedField):\n\n    def to_representation(self, data):\n        # If the content object was deleted\n        if data.content_object is None:\n            return None\n        try:\n            if not data.content_object.complete:\n                return None\n        except AttributeError:\n            pass\n        viewset = get_viewset_for_model(data.content_object)\n\n        # serializer contains all serialized fields because we are passing\n        # 'None' to the request's context\n        serializer = viewset.serializer_class(data.content_object, context={'request': None})\n        return serializer.data.get('_href')\n\n    class Meta:\n        model = models.CreatedResource\n        fields = []\n\n\nclass TaskSerializer(ModelSerializer):\n    _href = IdentityField(view_name='tasks-detail')\n    state = serializers.CharField(\n        help_text=_(\"The current state of the task. The possible values include:\"\n                    \" 'waiting', 'skipped', 'running', 'completed', 'failed' and 'canceled'.\"),\n        read_only=True\n    )\n    name = serializers.CharField(\n        help_text=_(\"The name of task.\")\n    )\n    started_at = serializers.DateTimeField(\n        help_text=_(\"Timestamp of the when this task started execution.\"),\n        read_only=True\n    )\n    finished_at = serializers.DateTimeField(\n        help_text=_(\"Timestamp of the when this task stopped execution.\"),\n        read_only=True\n    )\n    non_fatal_errors = serializers.JSONField(\n        help_text=_(\"A JSON Object of non-fatal errors encountered during the execution of this \"\n                    \"task.\"),\n        read_only=True\n    )\n    error = serializers.JSONField(\n        help_text=_(\"A JSON Object of a fatal error encountered during the execution of this \"\n                    \"task.\"),\n        read_only=True\n    )\n    worker = RelatedField(\n        help_text=_(\"The worker associated with this task.\"\n                    \" This field is empty if a worker is not yet assigned.\"),\n        read_only=True,\n        view_name='workers-detail'\n    )\n    parent = RelatedField(\n        help_text=_(\"The parent task that spawned this task.\"),\n        read_only=True,\n        view_name='tasks-detail'\n    )\n    spawned_tasks = RelatedField(\n        help_text=_(\"Any tasks spawned by this task.\"),\n        many=True,\n        read_only=True,\n        view_name='tasks-detail'\n    )\n    progress_reports = ProgressReportSerializer(\n        many=True,\n        read_only=True\n    )\n    created_resources = CreatedResourceSerializer(\n        help_text=_('Resources created by this task.'),\n        many=True,\n        read_only=True,\n        view_name='None'  # This is a polymorphic field. The serializer does not need a view name.\n    )\n\n    class Meta:\n        model = models.Task\n        fields = ModelSerializer.Meta.fields + ('state', 'name', 'started_at',\n                                                'finished_at', 'non_fatal_errors', 'error',\n                                                'worker', 'parent', 'spawned_tasks',\n                                                'progress_reports', 'created_resources')\n\n\nclass MinimalTaskSerializer(TaskSerializer):\n\n    class Meta:\n        model = models.Task\n        fields = ModelSerializer.Meta.fields + ('name', 'state', 'started_at', 'finished_at',\n                                                'worker', 'parent')\n\n\nclass TaskCancelSerializer(ModelSerializer):\n    state = serializers.CharField(\n        help_text=_(\"The desired state of the task. Only 'canceled' is accepted.\"),\n    )\n\n    class Meta:\n        model = models.Task\n        fields = ('state',)\n\n\nclass ContentAppStatusSerializer(ModelSerializer):\n    name = serializers.CharField(\n        help_text=_('The name of the worker.'),\n        read_only=True\n    )\n    last_heartbeat = serializers.DateTimeField(\n        help_text=_('Timestamp of the last time the worker talked to the service.'),\n        read_only=True\n    )\n\n    class Meta:\n        model = models.ContentAppStatus\n        fields = ('name', 'last_heartbeat')\n\n\nclass WorkerSerializer(ModelSerializer):\n    _href = IdentityField(view_name='workers-detail')\n\n    name = serializers.CharField(\n        help_text=_('The name of the worker.'),\n        read_only=True\n    )\n    last_heartbeat = serializers.DateTimeField(\n        help_text=_('Timestamp of the last time the worker talked to the service.'),\n        read_only=True\n    )\n    online = serializers.BooleanField(\n        help_text=_('True if the worker is considered online, otherwise False'),\n        read_only=True\n    )\n    missing = serializers.BooleanField(\n        help_text=_('True if the worker is considerd missing, otherwise False'),\n        read_only=True\n    )\n    # disable \"created\" because we don't care about it\n    created = None\n\n    class Meta:\n        model = models.Worker\n        _base_fields = tuple(set(ModelSerializer.Meta.fields) - set(['created']))\n        fields = _base_fields + ('name', 'last_heartbeat', 'online', 'missing')\n", "path": "pulpcore/app/serializers/task.py"}], "after_files": [{"content": "from gettext import gettext as _\n\nfrom rest_framework import serializers\n\nfrom pulpcore.app import models\nfrom pulpcore.app.serializers import (\n    IdentityField,\n    ModelSerializer,\n    ProgressReportSerializer,\n    RelatedField,\n)\nfrom pulpcore.app.util import get_viewset_for_model\n\n\nclass CreatedResourceSerializer(RelatedField):\n\n    def to_representation(self, data):\n        # If the content object was deleted\n        if data.content_object is None:\n            return None\n        try:\n            if not data.content_object.complete:\n                return None\n        except AttributeError:\n            pass\n        viewset = get_viewset_for_model(data.content_object)\n\n        # serializer contains all serialized fields because we are passing\n        # 'None' to the request's context\n        serializer = viewset.serializer_class(data.content_object, context={'request': None})\n        return serializer.data.get('_href')\n\n    class Meta:\n        model = models.CreatedResource\n        fields = []\n\n\nclass TaskSerializer(ModelSerializer):\n    _href = IdentityField(view_name='tasks-detail')\n    state = serializers.CharField(\n        help_text=_(\"The current state of the task. The possible values include:\"\n                    \" 'waiting', 'skipped', 'running', 'completed', 'failed' and 'canceled'.\"),\n        read_only=True\n    )\n    name = serializers.CharField(\n        help_text=_(\"The name of task.\")\n    )\n    started_at = serializers.DateTimeField(\n        help_text=_(\"Timestamp of the when this task started execution.\"),\n        read_only=True\n    )\n    finished_at = serializers.DateTimeField(\n        help_text=_(\"Timestamp of the when this task stopped execution.\"),\n        read_only=True\n    )\n    non_fatal_errors = serializers.JSONField(\n        help_text=_(\"A JSON Object of non-fatal errors encountered during the execution of this \"\n                    \"task.\"),\n        read_only=True\n    )\n    error = serializers.DictField(\n        child=serializers.JSONField(),\n        help_text=_(\"A JSON Object of a fatal error encountered during the execution of this \"\n                    \"task.\"),\n        read_only=True\n    )\n    worker = RelatedField(\n        help_text=_(\"The worker associated with this task.\"\n                    \" This field is empty if a worker is not yet assigned.\"),\n        read_only=True,\n        view_name='workers-detail'\n    )\n    parent = RelatedField(\n        help_text=_(\"The parent task that spawned this task.\"),\n        read_only=True,\n        view_name='tasks-detail'\n    )\n    spawned_tasks = RelatedField(\n        help_text=_(\"Any tasks spawned by this task.\"),\n        many=True,\n        read_only=True,\n        view_name='tasks-detail'\n    )\n    progress_reports = ProgressReportSerializer(\n        many=True,\n        read_only=True\n    )\n    created_resources = CreatedResourceSerializer(\n        help_text=_('Resources created by this task.'),\n        many=True,\n        read_only=True,\n        view_name='None'  # This is a polymorphic field. The serializer does not need a view name.\n    )\n\n    class Meta:\n        model = models.Task\n        fields = ModelSerializer.Meta.fields + ('state', 'name', 'started_at',\n                                                'finished_at', 'non_fatal_errors', 'error',\n                                                'worker', 'parent', 'spawned_tasks',\n                                                'progress_reports', 'created_resources')\n\n\nclass MinimalTaskSerializer(TaskSerializer):\n\n    class Meta:\n        model = models.Task\n        fields = ModelSerializer.Meta.fields + ('name', 'state', 'started_at', 'finished_at',\n                                                'worker', 'parent')\n\n\nclass TaskCancelSerializer(ModelSerializer):\n    state = serializers.CharField(\n        help_text=_(\"The desired state of the task. Only 'canceled' is accepted.\"),\n    )\n\n    class Meta:\n        model = models.Task\n        fields = ('state',)\n\n\nclass ContentAppStatusSerializer(ModelSerializer):\n    name = serializers.CharField(\n        help_text=_('The name of the worker.'),\n        read_only=True\n    )\n    last_heartbeat = serializers.DateTimeField(\n        help_text=_('Timestamp of the last time the worker talked to the service.'),\n        read_only=True\n    )\n\n    class Meta:\n        model = models.ContentAppStatus\n        fields = ('name', 'last_heartbeat')\n\n\nclass WorkerSerializer(ModelSerializer):\n    _href = IdentityField(view_name='workers-detail')\n\n    name = serializers.CharField(\n        help_text=_('The name of the worker.'),\n        read_only=True\n    )\n    last_heartbeat = serializers.DateTimeField(\n        help_text=_('Timestamp of the last time the worker talked to the service.'),\n        read_only=True\n    )\n    online = serializers.BooleanField(\n        help_text=_('True if the worker is considered online, otherwise False'),\n        read_only=True\n    )\n    missing = serializers.BooleanField(\n        help_text=_('True if the worker is considerd missing, otherwise False'),\n        read_only=True\n    )\n    # disable \"created\" because we don't care about it\n    created = None\n\n    class Meta:\n        model = models.Worker\n        _base_fields = tuple(set(ModelSerializer.Meta.fields) - set(['created']))\n        fields = _base_fields + ('name', 'last_heartbeat', 'online', 'missing')\n", "path": "pulpcore/app/serializers/task.py"}]}