This message was deleted.

That is a very strange error message - but Pulumi invoke function like

get_policy_document

don't accept

Output[T]

values as inputs, only raw strings and such, so the

user.arn.apply(lambda arn: arn)

above looks likely to be problematic. The typical approach is to call

get_policy_document

inside the

apply

. Which is typcially done by creating a helper function that will call this function with the real

str

value, and passing that function to

apply

.