chore: add constructors for grpc types

crates/python/src/grpc/models/translation.rs

@@ -1,18 +1,37 @@
 use qcs_api_client_grpc::services::translation::{
     translation_options::TranslationBackend, BackendV1Options, BackendV2Options, TranslationOptions,
 };
-use rigetti_pyo3::{py_wrap_data_struct, py_wrap_type, py_wrap_union_enum, create_init_submodule};
+use rigetti_pyo3::{
+    create_init_submodule, py_wrap_data_struct, py_wrap_type, py_wrap_union_enum,
+    pyo3::{pymethods, PyResult},
+};
 
 py_wrap_type! {
     #[derive(Default)]
     PyBackendV1Options(BackendV1Options) as "BackendV1Options";
 }
 
+#[pymethods]
+impl PyBackendV1Options {
+    #[new]
+    fn __new__() -> PyResult<Self> {
+        Ok(Self::default())
+    }
+}
+
 py_wrap_type! {
     #[derive(Default)]
     PyBackendV2Options(BackendV2Options) as "BackendV2Options";
 }
 
+#[pymethods]
+impl PyBackendV2Options {
+    #[new]
+    fn __new__() -> PyResult<Self> {
+        Ok(Self::default())
+    }
+}
+
 py_wrap_union_enum! {
     PyTranslationBackend(TranslationBackend) as "TranslationBackend" {
         v1: V1 => PyBackendV1Options,
@@ -27,11 +46,21 @@ py_wrap_data_struct! {
     }
 }
 
+#[pymethods]
+impl PyTranslationOptions {
+    #[new]
+    fn __new__(translation_backend: Option<PyTranslationBackend>) -> PyResult<Self> {
+        Ok(Self(TranslationOptions {
+            translation_backend: translation_backend.map(|b| b.0),
+        }))
+    }
+}
+
 create_init_submodule! {
     classes: [
         PyTranslationBackend,
         PyTranslationOptions,
         PyBackendV1Options,
         PyBackendV2Options
     ],
-}
+}