Support all possible fields for RichTextElementParts.Date

[deppe]

The slack_sdk.models.blocks.RichTextElementsParts.Date type supports timestamp, but the actual "date" rich text element supports other fields like url, fallback, format. Can this be extended to properly support all available fields?

documentation: https://api.slack.com/reference/block-kit/blocks#rich_text:~:text=date-,The%20following%20are%20the%20properties%20of%20the,object%20type,-in%20the

block builder example: https://app.slack.com/block-kit-builder/TG4KUE8JV#%7B%22blocks%22:%5B%7B%22type%22:%22rich_text%22,%22elements%22:%5B%7B%22type%22:%22rich_text_section%22,%22elements%22:%5B%7B%22type%22:%22date%22,%22timestamp%22:1720710212,%22format%22:%22%7Bdate_num%7D%20at%20%7Btime%7D%22,%22fallback%22:%22timey%22%7D%5D%7D%5D%7D%5D%7D

vs actual type in slack_sdk library: https://github.com/slackapi/python-slack-sdk/blob/main/slack_sdk/models/blocks/block_elements.py#L2097-L2112

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)
• [x] 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)
• [ ] slack_sdk.scim (SCIM API client)
• [ ] slack_sdk.rtm (RTM client)
• [ ] slack_sdk.signature (Request Signature Verifier)

Requirements

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[seratch]

Hi @deppe, thanks for taking the time to report this. You're right that rich text block elements were recently enhanced for third-party apps. Consequently, the model classes in this SDK do not yet support all the newly added properties. Our Java SDK recently resolved the same issue, so the Python SDK can follow suit: https://github.com/slackapi/java-slack-sdk/commit/d226674b3b7bececb40548283d35fdc701c4a3f7

We will resolve this in future releases. If you're interested in contributing to this SDK, your pull requests would be greatly appreciated.