diff --git a/rust/fastsim-core/fastsim-proc-macros/src/add_pyo3_api/pyo3_api_utils.rs b/rust/fastsim-core/fastsim-proc-macros/src/add_pyo3_api/pyo3_api_utils.rs
index 219770bc..88af5f8e 100644
--- a/rust/fastsim-core/fastsim-proc-macros/src/add_pyo3_api/pyo3_api_utils.rs
+++ b/rust/fastsim-core/fastsim-proc-macros/src/add_pyo3_api/pyo3_api_utils.rs
@@ -146,13 +146,3 @@ macro_rules! impl_set_body {
         }
     };
 }
-
-#[derive(Debug, Default, Clone)]
-pub struct FieldOptions {
-    /// if true, getters are not generated for a field
-    pub skip_get: bool,
-    /// if true, setters are not generated for a field
-    pub skip_set: bool,
-    /// if true, current field is itself a struct with `orphaned` field
-    pub field_has_orphaned: bool,
-}
diff --git a/rust/fastsim-core/src/traits.rs b/rust/fastsim-core/src/traits.rs
index 63d1a3e8..8c93c963 100644
--- a/rust/fastsim-core/src/traits.rs
+++ b/rust/fastsim-core/src/traits.rs
@@ -240,6 +240,7 @@ pub trait SerdeAPI: Serialize + for<'a> Deserialize<'a> {
     /// Instantiates an object from a url.  Accepts yaml and json file types  
     /// # Arguments  
     /// - url: URL (either as a string or url type) to object  
+    ///
     /// Note: The URL needs to be a URL pointing directly to a file, for example
     /// a raw github URL.
     fn from_url<S: AsRef<str>>(url: S, skip_init: bool) -> anyhow::Result<Self> {
diff --git a/rust/fastsim-core/src/vehicle_utils.rs b/rust/fastsim-core/src/vehicle_utils.rs
index 6f2c6a2f..8647525d 100644
--- a/rust/fastsim-core/src/vehicle_utils.rs
+++ b/rust/fastsim-core/src/vehicle_utils.rs
@@ -91,8 +91,7 @@ pub fn abc_to_drag_coeffs(
             vehicle: veh,
             dyno_func_lb: &dyno_func_lb,
         };
-        let solver =
-            NelderMead::new(vec![array![0.0, 0.0], array![0.5, 0.0], array![0.5, 0.1]]);
+        let solver = NelderMead::new(vec![array![0.0, 0.0], array![0.5, 0.0], array![0.5, 0.1]]);
         let res = Executor::new(cost, solver)
             .configure(|state| state.max_iters(100))
             .run()
@@ -239,8 +238,8 @@ pub struct GitObjectInfo {
     pub links: Option<ObjectLinks>,
 }
 
-const VEHICLE_REPO_LIST_URL: &'static str =
-    &"https://api.github.com/repos/NREL/fastsim-vehicles/contents/public";
+const VEHICLE_REPO_LIST_URL: &str =
+    "https://api.github.com/repos/NREL/fastsim-vehicles/contents/public";
 
 /// Function that takes a url and calls the url. If a 503 or 429 error is
 /// thrown, it tries again after a pause, up to four times. It returns either a