* Allow passing binary to the WS connection
* Expand test coverage
* Test non-existing handler
* Add text to speech and stages to pipeline
* Default to "cloud" TTS when engine is None
* Refactor pipeline request to split text/audio
* Refactor with PipelineRun
* Generate pipeline from language
* Clean up
* Restore TTS code
* Add audio pipeline test
* Clean TTS cache in test
* Clean up tests and pipeline base class
* Stop pylint and pytest magics from fighting
* Include mock_get_cache_files
* Working on STT
* Preparing to test
* First successful test
* Send handler_id
* Allow signaling end of stream using empty payloads
* Store handlers in a list
* Handle binary handlers raising exceptions
* Add stt/tts dependencies to voice_assistant
* Include STT audio in pipeline test
* Working on tests
* Refactoring with stages
* Fix tests
* Add more tests
* Add method docs
* Change stt demo/cloud to AsyncIterable
* Add pipeline error events
* Move handler id to separate message before pipeline
* Add test for invalid stage order
* Change "finish" to "end"
* Use enum
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Co-authored-by: Paulus Schoutsen <balloob@gmail.com>
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