add dynamic store connection APIs

[prha]

Summary & Motivation

Creates pagination connection API methods for fetching partition keys from the dynamic store (backed by the instance / event_log_storage).

How I Tested These Changes

BK

[prha]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• remove partition view on asset events for non-sda assets #28941
• change UI to narrow asset events query #28903
• add paginated partition key graphql fields to partitioned asset nodes #28774
• add dynamic store connection APIs #28655 👈 (View in Graphite)
• partition key pagination APIs #28311
• master

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[graphite-app]

It appears that Connection.create_from_sequence() is being called, but this static method doesn't seem to be implemented in the Connection class. A search through the codebase doesn't reveal any implementation of this method, which would cause a runtime AttributeError when this code is executed.

This needs to be addressed by either:

1. Implementing the create_from_sequence() method in the Connection class, or
2. Modifying this code to use an existing method or directly construct the Connection object

Without this fix, the pagination functionality for dynamic partitions will fail when using cached partition keys.

GitHub Flavored Markdown

Suggested change

	return Connection.create_from_sequence(
	seq=partition_keys, limit=limit, ascending=ascending, cursor=cursor
	return Connection.from_list(
	items=partition_keys, limit=limit, ascending=ascending, cursor=cursor

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[gibsondan]

very exciting

[OwenKephart]

note comment