## Wait State

- ✅ Four wait methods: Seconds, SecondsPath, Timestamp, TimestampPath
- ✅ Async/await pattern with asyncio.sleep()
- ✅ Task cancellation support
- ✅ ISO-8601 timestamp parsing (multiple formats)
- ✅ Past timestamp handling (no wait)
- ✅ Full path processing support
- ✅ Comprehensive validation (one wait method required)
- ✅ 45+ test cases covering all scenarios

### Test-Details
Comprehensive test suite with 45+ tests covering:

- ✅ Initialization tests for all wait methods
- ✅ Validation tests (one method required, only one allowed, non-negative seconds)
- ✅ Execute with Seconds (including zero and fractional seconds)
- ✅ Execute with SecondsPath (including invalid values, negatives, floats)
- ✅ Execute with Timestamp (future, past, invalid, with microseconds)
- ✅ Execute with TimestampPath (valid and invalid values)
- ✅ Task cancellation handling
- ✅ Path processing (input, result, output paths)
- ✅ JSON serialization (to_dict, to_json)
- ✅ Timing verification (ensures proper wait durations)
- ✅ Edge cases (nil input, context, different timestamp formats)
- ✅ Integration tests with real processor
- ✅ Concurrent execution tests
- ✅ Helper method tests (number conversion, timestamp parsing)

### Key Features:

* ✅ Matches Go implementation functionality while being Pythonic
* ✅ No error tuples - uses StateError exceptions instead
* ✅ Async/await pattern for non-blocking waits
* ✅ Timezone-aware datetime handling
* ✅ Cancellation support via asyncio task cancellation
* ✅ Comprehensive timing tests with appropriate tolerances
