prompt: 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()
  
  ```
  
golden_diff: 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)
  
verification_info: {"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"}]}