In a document, it's written that:

get_context allows to provide a custom context object that can be used in your resolver. You can return anything here, by default we return a dictionary with the request.

class MyGraphQLView(AsyncGraphQLView):
    async def get_context(self, request: HttpRequest, response: HttpResponse) -> Any:
        return {"example": 1}

urlpatterns = [
    path('graphql/', MyGraphQLView.as_view(schema=schema)),
]

@strawberry.type
class Query:
    @strawberry.field
    def example(self, info: Info) -> str:
        return str(info.context["example"])

But when I tried it in a query and it returned the following error:

{
    "data": {
        "example": null
    },
    "errors": [
        {
            "message": "'StrawberryChannelsContext' object is not subscriptable",
            "locations": [
                {
                    "line": 2,
                    "column": 3
                }
            ],
            "path": [
                "user"
            ]
        }
    ]
}

And when I tried to get a user from the request context, it didn't work either

@strawberry.type
class Query:
    @strawberry.field
    def user(self, info: Info) -> str:
        return str(info.context.request.user)

{
    "data": {
        "user": null
    },
    "errors": [
        {
            "message": "'GraphQLHTTPConsumer' object has no attribute 'user'",
            "locations": [
                {
                    "line": 2,
                    "column": 3
                }
            ],
            "path": [
                "user"
            ]
        }
    ]
}

I'm not sure whether it's a bug or the document is outdated.