We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Datacollector fix
Simplify the `DataCollector` API by allowing the user-provided model- and agent-level reporters to be the names of attributes, in addition to methods. e.g. instead of needing to write

```
agent_reporters={"Wealth": lambda a: a.wealth}
```

you can write
```
agent_reporters={"Wealth":"wealth"}
```

This PR implements this feature, and updates the tests and documentation accordingly.

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `mesa/__init__.py`
Content:
```
1 # -*- coding: utf-8 -*-
2 """
3 Mesa Agent-Based Modeling Framework
4 
5 Core Objects: Model, and Agent.
6 
7 """
8 import datetime
9 
10 from .model import Model
11 from .agent import Agent
12 
13 
14 __all__ = ["Model", "Agent"]
15 
16 __title__ = 'mesa'
17 __version__ = '0.8.2'
18 __license__ = 'Apache 2.0'
19 __copyright__ = 'Copyright %s Project Mesa Team' % datetime.date.today().year
20
```
--- 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/mesa/__init__.py b/mesa/__init__.py
--- a/mesa/__init__.py
+++ b/mesa/__init__.py
@@ -14,6 +14,6 @@
 __all__ = ["Model", "Agent"]
 
 __title__ = 'mesa'
-__version__ = '0.8.2'
+__version__ = '0.8.3'
 __license__ = 'Apache 2.0'
 __copyright__ = 'Copyright %s Project Mesa Team' % datetime.date.today().year

{"golden_diff": "diff --git a/mesa/__init__.py b/mesa/__init__.py\n--- a/mesa/__init__.py\n+++ b/mesa/__init__.py\n@@ -14,6 +14,6 @@\n __all__ = [\"Model\", \"Agent\"]\n \n __title__ = 'mesa'\n-__version__ = '0.8.2'\n+__version__ = '0.8.3'\n __license__ = 'Apache 2.0'\n __copyright__ = 'Copyright %s Project Mesa Team' % datetime.date.today().year\n", "issue": "Datacollector fix\nSimplify the `DataCollector` API by allowing the user-provided model- and agent-level reporters to be the names of attributes, in addition to methods. e.g. instead of needing to write\r\n\r\n```\r\nagent_reporters={\"Wealth\": lambda a: a.wealth}\r\n```\r\n\r\nyou can write\r\n```\r\nagent_reporters={\"Wealth\":\"wealth\"}\r\n```\r\n\r\nThis PR implements this feature, and updates the tests and documentation accordingly.\n", "before_files": [{"content": "# -*- coding: utf-8 -*-\n\"\"\"\nMesa Agent-Based Modeling Framework\n\nCore Objects: Model, and Agent.\n\n\"\"\"\nimport datetime\n\nfrom .model import Model\nfrom .agent import Agent\n\n\n__all__ = [\"Model\", \"Agent\"]\n\n__title__ = 'mesa'\n__version__ = '0.8.2'\n__license__ = 'Apache 2.0'\n__copyright__ = 'Copyright %s Project Mesa Team' % datetime.date.today().year\n", "path": "mesa/__init__.py"}], "after_files": [{"content": "# -*- coding: utf-8 -*-\n\"\"\"\nMesa Agent-Based Modeling Framework\n\nCore Objects: Model, and Agent.\n\n\"\"\"\nimport datetime\n\nfrom .model import Model\nfrom .agent import Agent\n\n\n__all__ = [\"Model\", \"Agent\"]\n\n__title__ = 'mesa'\n__version__ = '0.8.3'\n__license__ = 'Apache 2.0'\n__copyright__ = 'Copyright %s Project Mesa Team' % datetime.date.today().year\n", "path": "mesa/__init__.py"}]}