More convenient pagination support in SCIM / Audit Logs API clients

[ruberVulpes]

If it's possible I'd love for the SCIMClient's searches to be able to be paginated like the WebClient does with the SlackResponse. It looks like it could be done with the body returned.

Category (place an x in each of the [ ])

• [ ] slack_sdk.web.WebClient (sync/async) (Web API client)
• [ ] slack_sdk.webhook.WebhookClient (sync/async) (Incoming Webhook, response_url sender)
• [ ] slack_sdk.models (UI component builders)
• [ ] slack_sdk.oauth (OAuth Flow Utilities)
• [ ] slack_sdk.socket_mode (Socket Mode client)
• [ ] slack_sdk.audit_logs (Audit Logs API client)
• [x] slack_sdk.scim (SCIM API client)
• [ ] slack_sdk.rtm (RTM client)
• [ ] slack_sdk.signature (Request Signature Verifier)

Requirements

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[seratch]

Hi @ruberVulpes, thanks for writing in! Indeed, that should be more convenient in some situations.

One challenge around the feature addition is that, if we enhance the response class as with the WebClient, the internals of the response/client classes can be a bit complex. The reason is that we have to properly support both the default and asyncio-based clients.

Thus, I am thinking that providing a kind of wrapper class (in other words, decorator in GoF design pattern) may be easier and cleaner. Here is pseudo code illustrating how it can work:

client = SCIMClient(token=os.environ["SLACK_ORG_ADMIN_USER_TOKEN"])
paginator = SCIMClientPaginator(client)

for page in paginator.search_users(filter="""filter=userName Eq "Carly""""):
    print(page.users) # list

Also, if we add this feature to the SCIM clients, we can do the same for the Audit Logs clients too.