[tim-zhu-reddit]

💸 TL;DR

• Pass untyped context and identifier fields to Rust Decider without adding each name to this library.

📜 Details

• Preserve typed/extracted-field precedence and isolate per-call overrides.
• Keep the exported IDENTIFIERS list; accept custom names in all three identifier APIs.
• Add optional per-call context_fields to get_variant and get_variant_without_expose.
• Preserve custom exposure values in inputs without colliding with logger metadata or self.
• Document custom targeting and bucketing usage. No dependency changes.

🧪 Testing Steps / Validation

• Full suite passes on Python 3.9 with Rust Decider 1.15.0, 1.18.1, and 1.19.0b5.
• Collision regressions fail before the fixes and pass afterward; six names across six exposure paths.
• New context_fields tests fail before the change and pass afterward.
• make lint passes for Python 3.8, 3.9, and 3.10; git diff --check passes; context isolation verified.
• All seven CI matrix jobs pass at 0bff712.
• Astra approved the fix delta. Fresh independent Opus review timed out without a verdict.
• Snoofactor review remains blocked: the integration cannot access this GitHub.com PR.

✅ Checks

• CI tests (if present) are passing
• Adheres to code style for repo

[mrlevitas]

ah nice! That works great for removing identifier_type restriction for get_variant_for_identifier API.

We may also want to consider expanding the standard get_variant API to take Optional **context_kwargs (similar to **exposure_kwargs) for populating arbitrary fields under other_info dict for the same flexibility as Native-Go Decider.
Since it's optional field, should be backwards compatible.

[tim-zhu-reddit]

added in 0bff712

• get_variant and get_variant_without_expose take an optional keyword-only context_fields dict (python can't have a second **kwargs next to **exposure_kwargs)
• fields apply to that call only, at the top level and under other_fields, and win over the stored context
• exposures still log the stored fields plus the bucketing value, same as the identifier APIs

kept it to those two for now. happy to add it to get_all_variants_without_expose and the dynamic config getters too if you want full Native-Go Decider parity