Describes all custom permissions that are mapped to a role.
See https://www.paws-r-sdk.com/docs/quicksight_describe_role_custom_permission/ for full documentation.
quicksight_describe_role_custom_permission(Role, AwsAccountId, Namespace)
[required] The name of the role whose permissions you want described.
[required] The ID for the Amazon Web Services account that you want to create a group in. The Amazon Web Services account ID that you provide must be the same Amazon Web Services account that contains your Amazon QuickSight account.
[required] The namespace that contains the role.