Kameleoon-client-python

Bug fixes
* Resolved an issue where the validation of [top-level domains](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#additional-configuration) for `localhost` resulted in incorrect failures. The SDK now accepts the provided domain without modification if it is deemed invalid and logs an [error](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#log-levels) to notify you of any issues with the specified domain.

Features
* Introduced a new `visitor_code` parameter to [`RemoteVisitorDataFilter`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#using-parameters-in-get_remote_visitor_data). This parameter determines whether to use the `visitor_code` from the most recent previous visit instead of the current `visitor_code`. When enabled, this feature allows visitor exposure to be based on the retrieved `visitor_code`, facilitating [cross-device reconciliation](https://developers.kameleoon.com/core-concepts/cross-device-experimentation/). Default value of the parameter is `True`.
Bug fixes
* Fixed an issue with the [`Page URL`](https://developers.kameleoon.com/feature-management-and-experimentation/using-visit-history-in-feature-flags-and-experiments/#benefits-of-calling-getremotevisitordata) and [`Page Title`](https://developers.kameleoon.com/feature-management-and-experimentation/using-visit-history-in-feature-flags-and-experiments/#benefits-of-calling-getremotevisitordata) targeting conditions, where the condition evaluated all previously visited URLs in the session instead of only the current URL, corresponding to the latest added [`PageView`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#pageview).<br/>
**NOTE**: This change may impact your existing targeting. Please review your targeting conditions to ensure accuracy.

Features
* Introduced new evaluation methods for clarity and improved efficiency when working with the SDK:
- [`get_variation`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#get_variation)
- [`get_variations`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#get_variations)
* These methods replace the deprecated ones:
- [`get_feature_variation_key`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk#get_feature_variation_key)
- [`get_feature_variable`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk#get_feature_variable)
- [`get_active_features`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk#get_active_features)
- [`get_feature_variation_variables`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk#get_feature_variation_variables)
* A new version of the [`is_feature_active`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#is_feature_active) method now includes an optional `track` parameter, which controls whether the assigned variation is tracked (default: `True`).
* Enhanced the [`get_engine_tracking_code`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk#getenginetrackingcode) method to properly handle `JS` and `CSS` variables.

Features
* Improved the tracking mechanism to consolidate multiple visitors into a single request, combining information on all affected visitors into one request, sent once per interval.
* Added a new parameter `instant` of the [`flush`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#flush) method. If the parameter's value is `True` the visitor's data is tracked instantly. Otherwise, the visitor's data will be tracked with next tracking interval. Default value of the parameter is `False`.
* Added new configuration parameter `tracking_interval_millisecond` to [`KameleoonClientConfig`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#initializing-the-kameleoon-client) and the [configuration](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#additional-configuration) file, which is used to set interval for tracking requests. Default value is `1000` milliseconds.
* New Kameleoon Data type [`UniqueIdentifier`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk#uniqueidentifier) is introduced. It will be used in all methods instead of `is_unique_identifier` parameter. All usages of the `is_unique_identifier` parameter in the methods are marked as deprecated:
- [`flush`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#flush)
- [`track_conversion`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#track_conversion)
- [`track_conversion`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#track_conversion)
- [`get_feature_variation_key`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk#get_feature_variation_key)
- [`get_feature_variable`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk#get_feature_variable)
- [`is_feature_active`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk#is_feature_active)
- [`get_remote_visitor_data`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk#get_remote_visitor_data)
* Enhanced [logging](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#logging):
- Introduced [log levels](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#log-levels):
- `NONE`
- `ERROR`
- `WARNING`
- `INFO`
- `DEBUG`
- Added support for [custom logger](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#custom-handling-of-logs) implementations.
* Changed the parameters `logger` and `multi_threading` in object [`KameleoonClientConfig`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#initializing-the-kameleoon-client) the deprecated.
* Enhanced top-level domain validation within the SDK. The implementation now includes automatic trimming of extraneous symbols and provides a [warning](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#log-levels) when an invalid domain is detected.
Bug fixes
* Resolved an issue where the [`flush(None, is_unique_identifier)`](https://developers.kameleoon.com/feature-management-and-experimentation/web-sdks/python-sdk/#flush) method was incorrectly sending requests with `is_unique_identifier` applied to each visitor. Now, `is_unique_identifier` is only considered if `visitor_code` is provided and not None.
* Fixed an issue that caused duplicate entries in feature flag results for both anonymous and authorized/identified visitors during data reconciliation. This problem occurred when custom data of type mapping ID was not consistently sent for all sessions.

Bug fixes
* Resolved issues with malformed library package assembly.

Features
* This version broadens the range of acceptable `pyyaml` and `sseclient-py` versions, enhancing flexibility and compatibility with more recent releases of the library:
- Expanded the compatible versions of the `pyyaml` library to include `6.0.*`, in addition to the previously supported `5.4.*`.
- Expanded the compatible versions of the `sseclient-py` library to include `1.8.*`, in addition to the previously supported `1.7.*`.