does not write input parameters not in the include

lib/open_telemetry_decorator.ex

@@ -62,6 +62,7 @@ defmodule OpenTelemetryDecorator do
       input_params =
         Kernel.binding()
         |> Keyword.delete(:result)
+        |> Keyword.take(unquote(include))
         |> O11y.set_attributes(namespace: prefix)
 
       try do
@@ -72,8 +73,8 @@ defmodule OpenTelemetryDecorator do
 
         Kernel.binding()
         |> Keyword.put(:result, result)
-        |> Keyword.take(unquote(include))
         |> Keyword.merge(input_params)
+        |> Keyword.take(unquote(include))
         |> O11y.set_attributes(namespace: prefix)
 
         result

test/open_telemetry_decorator_test.exs

@@ -48,7 +48,7 @@ defmodule OpenTelemetryDecoratorTest do
         end
       end
 
-      @decorate with_span("Example.parse_params", include: [[:params, "id"]])
+      @decorate with_span("Example.parse_params", include: [:params])
       def parse_params(params) do
         %{"id" => id} = params
 
@@ -173,6 +173,23 @@ defmodule OpenTelemetryDecoratorTest do
       assert %{"app.x" => 1, "app.y" => 1} = span.attributes
     end
 
+    test "does not write input parameters not in the include " do
+      defmodule InputExample do
+        use OpenTelemetryDecorator
+
+        @decorate with_span("inputs", include: [:x])
+        def inputs(x, y) do
+          z = x + y
+          {:ok, z}
+        end
+      end
+
+      assert {:ok, 3} = InputExample.inputs(1, 2)
+
+      span = assert_span("inputs")
+      assert span.attributes == %{"app.x" => 1}
+    end
+
     test "overwrites the default result value" do
       defmodule ExampleResult do
         use OpenTelemetryDecorator