We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
[DOC] Remove example.py in examples directory
The code in the example.py file currently reads some data frame from a file called 'dirty_data.xls'.
We can change this to include a concrete example.

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `examples/example.py`
Content:
```
1 import pandas as pd
2 
3 import janitor as jn
4 
5 df = (
6     pd.read_excel("dirty_data.xlsx")
7     .clean_names()
8     .remove_empty()
9     .rename_column("%_allocated", "percent_allocated")
10     .rename_column("full_time_", "full_time")
11     .coalesce(["certification", "certification_1"], "certification")
12     .encode_categorical(["subject", "employee_status", "full_time"])
13     .convert_excel_date("hire_date")
14 )
15 
16 print(df)
17 print(df.original_names)
18
```
--- 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/examples/example.py b/examples/example.py
deleted file mode 100644
--- a/examples/example.py
+++ /dev/null
@@ -1,17 +0,0 @@
-import pandas as pd
-
-import janitor as jn
-
-df = (
-    pd.read_excel("dirty_data.xlsx")
-    .clean_names()
-    .remove_empty()
-    .rename_column("%_allocated", "percent_allocated")
-    .rename_column("full_time_", "full_time")
-    .coalesce(["certification", "certification_1"], "certification")
-    .encode_categorical(["subject", "employee_status", "full_time"])
-    .convert_excel_date("hire_date")
-)
-
-print(df)
-print(df.original_names)

{"golden_diff": "diff --git a/examples/example.py b/examples/example.py\ndeleted file mode 100644\n--- a/examples/example.py\n+++ /dev/null\n@@ -1,17 +0,0 @@\n-import pandas as pd\n-\n-import janitor as jn\n-\n-df = (\n-    pd.read_excel(\"dirty_data.xlsx\")\n-    .clean_names()\n-    .remove_empty()\n-    .rename_column(\"%_allocated\", \"percent_allocated\")\n-    .rename_column(\"full_time_\", \"full_time\")\n-    .coalesce([\"certification\", \"certification_1\"], \"certification\")\n-    .encode_categorical([\"subject\", \"employee_status\", \"full_time\"])\n-    .convert_excel_date(\"hire_date\")\n-)\n-\n-print(df)\n-print(df.original_names)\n", "issue": "[DOC] Remove example.py in examples directory\nThe code in the example.py file currently reads some data frame from a file called 'dirty_data.xls'.\r\nWe can change this to include a concrete example.\n", "before_files": [{"content": "import pandas as pd\n\nimport janitor as jn\n\ndf = (\n    pd.read_excel(\"dirty_data.xlsx\")\n    .clean_names()\n    .remove_empty()\n    .rename_column(\"%_allocated\", \"percent_allocated\")\n    .rename_column(\"full_time_\", \"full_time\")\n    .coalesce([\"certification\", \"certification_1\"], \"certification\")\n    .encode_categorical([\"subject\", \"employee_status\", \"full_time\"])\n    .convert_excel_date(\"hire_date\")\n)\n\nprint(df)\nprint(df.original_names)\n", "path": "examples/example.py"}], "after_files": [{"content": null, "path": "examples/example.py"}]}