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# Repair experiment exposure telemetry

Work in `/app/vendor/flagsmith-python-client` and repair the existing Python SDK implementation. The current code can inflate experiment exposure counts and can attribute customers to a feature payload even when no experiment variant was assigned.

Modify both of these existing production modules:

- `flagsmith/flagsmith.py`
- `flagsmith/analytics.py`

The repaired integration must satisfy all of the following:

1. `Flagsmith.get_experiment_flag(...)` must always return the resolved flag, but emit an exposure only when the result is a real `Flag`, the flag is enabled, and `flag.variant` is not `None`. Default-handler results, disabled flags, and variant-less flags must not emit exposure telemetry.
2. A qualified exposure must use the experiment variant key as its event value, never the feature-state display payload.
3. Exposure tracking requires a non-empty customer identifier. A direct exposure call without one must be ignored rather than buffered.
4. Within one active event buffer, repeated exposures with the same feature name, customer identifier, and normalized value must collapse to one buffered record. Differences in any of those three fields must remain distinct.
5. Deduplication applies only to `$flag_exposure` events. Repeated ordinary custom or conversion events must preserve their full multiplicity, even when their payloads are identical.
6. A flush starts a new exposure-deduplication window, so the same exposure may be accepted again after the buffered batch is handed off. Existing failed-delivery requeue behavior must continue retaining the attempted events.
7. Preserve the existing event payload shape, value stringification, automatic maximum-buffer flush behavior, timer lifecycle, and public method signatures.

Do not delete or replace the vendored package or its tests, disable behavior, add network dependencies, or solve the task by creating a separate script outside the existing SDK modules.