chore: add py.typed (#3043)

This PR adds `py.typed`, which will fix issues of the following type:

![Uploading Screenshot 2024-05-17 at 12.13.33.png…]()

---------

Co-authored-by: Matt Robinson <mrobinson@unstructured.io>

CHANGELOG.md

@@ -35,7 +35,8 @@
 * **Fix possible `SyntaxError` or `SyntaxWarning` on regex patterns.** Change regex patterns to raw strings to avoid these warnings/errors in Python 3.11+.
 * **Fix disk-space leak in `partition_odt()`.** Remove temporary file created but not removed when `file` argument is passed to `partition_odt()`.
 * **AstraDB: option to prevent indexing metadata**
-
+* **Fix Missing py.typed**
+  
 ## 0.13.7
 
 ### Enhancements

setup.py

@@ -176,5 +176,5 @@ setup(
         "databricks-volumes": load_requirements("requirements/ingest/databricks-volumes.in"),
     },
     package_dir={"unstructured": "unstructured"},
-    package_data={"unstructured": ["nlp/*.txt"]},
+    package_data={"unstructured": ["nlp/*.txt", "py.typed"]},
 )

unstructured/py.typed

@@ -0,0 +1,2 @@
+# this is a marker used by static type checkers such as MyPy
+# see: https://peps.python.org/pep-0561/ for reference.