[FEATURE] Make `AuthEntryReference` typed in Python SDK

[badmonster0]

AuthEntryReference is currently untyped. So that users may register something in one type, but pass it to a spec accepting another type, without being caught by type validations.

Ideally

• AuthEntryReference should be typed, e.g. the type should be AuthEntryReference[T].
  

  cocoindex/python/cocoindex/auth_registry.py

  Line 11 in 39ce910

  class AuthEntryReference:

• add_auth_entry() should return the type AuthEntryReference[T] where T is the same as the argument value's type
  

  cocoindex/python/cocoindex/auth_registry.py

  Line 15 in 08655cb

  def add_auth_entry(key: str, value) -> AuthEntryReference:

• AuthEntryReference in various specs should be changed to AuthEntryReference with type parameter, e.g.
  • For Postgres.database, the type should be AuthEntryReference[.lib.DatabaseConnectionSpec] | None

    cocoindex/python/cocoindex/storages.py

    Lines 9 to 13 in 08655cb

    	class Postgres(op.StorageSpec):
    	"""Storage powered by Postgres and pgvector."""
    	database: AuthEntryReference | None = None
    	table_name: str | None = None

  • For Neo4j.connection, the type should be AuthEntryReference[Neo4jConnection]

    cocoindex/python/cocoindex/storages.py

    Lines 68 to 72 in 08655cb

    	class Neo4j(op.StorageSpec):
    	"""Graph storage powered by Neo4j."""
    	connection: AuthEntryReference
    	mapping: NodeMapping | RelationshipMapping

[badmonster0]

This is the corresponding change on Rust side: https://github.com/cocoindex-io/cocoindex/pull/389/files

[lemorage]

I can work on this issue!