feat: early interface with Python

src/home_assistant/state_machine.rs

@@ -0,0 +1,29 @@
+use pyo3::prelude::*;
+
+use crate::{
+    home_assistant::entity_id::EntityId,
+    python_utils::{detach, validate_type_by_name},
+};
+
+use super::state::State;
+
+#[derive(Debug)]
+pub struct StateMachine(Py<PyAny>);
+
+impl<'py> FromPyObject<'py> for StateMachine {
+    fn extract_bound(ob: &Bound<'py, PyAny>) -> PyResult<Self> {
+        // region: Validation
+        validate_type_by_name(ob, "StateMachine")?;
+        // endregion: Validation
+
+        Ok(Self(detach(ob)))
+    }
+}
+
+impl StateMachine {
+    pub fn get(&self, py: &Python, entity_id: EntityId) -> Result<Option<State>, PyErr> {
+        let args = (entity_id.to_string(),);
+        let state = self.0.call_method1(*py, "get", args)?;
+        state.extract(*py)
+    }
+}