docs(recipes): correct DuplicateProviderTypeError message text

lesnik512 · claude · lesnik512 · commit e91892ff41f1 · 2026-06-06T23:07:47.000+03:00
End-to-end verification against the published modern-di surfaced that
the actual exception message reads "Provider is duplicated by type
&lt;class 'httpware.client.AsyncClient'&gt;. To resolve this issue: ..." —
not the shorter "AsyncClient is already registered" the recipe showed.
Module path and class name were already correct.

Co-Authored-By: Claude Opus 4.7 (1M context) &lt;noreply@anthropic.com&gt;
diff --git a/docs/recipes/modern-di.md b/docs/recipes/modern-di.md
@@ -56,7 +56,8 @@ class ServiceClients(Group):
     )
 
 # At Container(...) construction:
-# modern_di.exceptions.DuplicateProviderTypeError: AsyncClient is already registered
+# modern_di.exceptions.DuplicateProviderTypeError: Provider is duplicated by type
+# <class 'httpware.client.AsyncClient'>. To resolve this issue: ...
 ```
 
 `modern-di` resolves dependencies by `bound_type`, which defaults to the creator's return type. Both providers default to `bound_type=AsyncClient` and collide in the providers registry.

Original file line number	Diff line number	Diff line change
`@@ -56,7 +56,8 @@ class ServiceClients(Group):`
`56`	`56`	`)`
`57`	`57`
`58`	`58`	`# At Container(...) construction:`
`59`		`-# modern_di.exceptions.DuplicateProviderTypeError: AsyncClient is already registered`
	`59`	`+# modern_di.exceptions.DuplicateProviderTypeError: Provider is duplicated by type`
	`60`	`+# <class 'httpware.client.AsyncClient'>. To resolve this issue: ...`
`60`	`61`	```
`61`	`62`
`62`	`63`	`modern-di` resolves dependencies by `bound_type`, which defaults to the creator's return type. Both providers default to `bound_type=AsyncClient` and collide in the providers registry.