docs: add request_hook parameter description to RedisInstrumentor (open-telemetry#3247)

* docs: add request_hook parameter description to RedisInstrumentor

* changelog: add missing entry in doc string for _instrument in opentelemetry-instrumentation-redis

---------

Co-authored-by: Emídio Neto <[email protected]>

Author: nhtgl

CHANGELOG.md

@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+### Fixed
+- `opentelemetry-instrumentation-redis` Add missing entry in doc string for `def _instrument`
+  ([#3247](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3247))
+
 ## Version 1.30.0/0.51b0 (2025-02-03)
 
 ### Added

instrumentation/opentelemetry-instrumentation-redis/src/opentelemetry/instrumentation/redis/__init__.py

@@ -474,6 +474,7 @@ def _instrument(self, **kwargs: Any):
         Args:
             **kwargs: Optional arguments
                 ``tracer_provider``: a TracerProvider, defaults to global.
+                ``request_hook``: An optional callback that is invoked right after a span is created.
                 ``response_hook``: An optional callback which is invoked right before the span is finished processing a response.
         """
         tracer_provider = kwargs.get("tracer_provider")