Fix typecheck add changelog

Author: DylanRussell

util/opentelemetry-util-genai/CHANGELOG.md

@@ -15,6 +15,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3795](#3795))
 - Make inputs / outputs / system instructions optional params to `on_completion`,
   ([https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3802](#3802)).
+- Use an md5 hash of the system instructions as it's upload filename, and check
+  if the file exists before re-uploading it, ([https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3814](#3814)).
+
 
 ## Version 0.1b0 (2025-09-25)
 

util/opentelemetry-util-genai/src/opentelemetry/util/genai/_upload/completion_hook.py

@@ -163,7 +163,7 @@ def _calculate_ref_path(
         if all(isinstance(x, types.Text) for x in system_instruction):
             md5_hash = hashlib.md5()
             md5_hash.update(
-                "\n".join(x.content for x in system_instruction).encode(
+                "\n".join(x.content for x in system_instruction).encode(  # pyright: ignore[reportUnknownMemberType, reportAttributeAccessIssue, reportUnknownArgumentType]
                     "utf-8"
                 )
             )
@@ -187,7 +187,7 @@ def _do_upload(
     ) -> None:
         # FileSystem class has this method. Only check for system instructions as that's the only where the filename is a hash.
         # https://filesystem-spec.readthedocs.io/en/latest/api.html#fsspec.spec.AbstractFileSystem.exists
-        if "_system_instruction" in path and self._fs.exists(path):
+        if "_system_instruction" in path and self._fs.exists(path):  # pyright: ignore[reportUnknownMemberType]
             return
         if self._format == "json":
             # output as a single line with the json messages array