fix: No ruby 3.1 shorthand

Author: joshwestbrook

instrumentation/aws_lambda/README.md

@@ -28,6 +28,32 @@ def otel_wrapper(event:, context:)
 end
 ```
 
+### Alternative Usage
+
+If using a Lambda Layer is not an option for your given setup, you can programatically instrument a handler by using the `OpenTelemetry::Instrumentation::AwsLambda::Wrap` module.
+
+```ruby
+require 'opentelemetry/sdk'
+require 'opentelemetry/instrumentation/aws_lambda'
+
+OpenTelemetry::SDK.configure do |c|
+  c.service_name = '<YOUR_SERVICE_NAME>'
+  c.use 'OpenTelemetry::Instrumentation::AwsLambda'
+end
+
+# Lambda Handler
+module Example
+  class Handler
+    extend OpenTelemetry::Instrumentation::AwsLambda::Wrap
+
+    def self.process(event:, context:)
+      puts event.inspect
+    end
+    instrument_handler :process
+  end
+end
+```
+
 ## Example
 
 To run the example:

instrumentation/aws_lambda/lib/opentelemetry/instrumentation/aws_lambda/handler.rb

@@ -28,7 +28,7 @@ def initialize
         # Try to record and re-raise any exception from the wrapped function handler
         # Instrumentation should never raise its own exception
         def call_wrapped(event:, context:)
-          self.class.wrap_lambda(event:, context:, handler: @original_handler, flush_timeout: @flush_timeout) do
+          self.class.wrap_lambda(event: event, context: context, handler: @original_handler, flush_timeout: @flush_timeout) do
             call_original_handler(event: event, context: context)
           end
         end

instrumentation/aws_lambda/lib/opentelemetry/instrumentation/aws_lambda/wrap.rb

@@ -21,7 +21,7 @@ def instrument_handler(method, flush_timeout: DEFAULT_FLUSH_TIMEOUT)
           handler = "#{name}.#{method}"
 
           define_singleton_method(method) do |event:, context:|
-            wrap_lambda(event:, context:, handler:, flush_timeout:) { public_send(uninstrumented_method, event:, context:) }
+            wrap_lambda(event: event, context: context, handler: handler, flush_timeout: flush_timeout) { public_send(uninstrumented_method, event: event, context: context) }
           end
         end