diff --git a/crates/napi/src/bindgen_runtime/js_values/array.rs b/crates/napi/src/bindgen_runtime/js_values/array.rs
index 96100b31..3fc7baba 100644
--- a/crates/napi/src/bindgen_runtime/js_values/array.rs
+++ b/crates/napi/src/bindgen_runtime/js_values/array.rs
@@ -302,3 +302,300 @@ where
     Ok(ptr::null_mut())
   }
 }
+
+macro_rules! arr_get {
+  ($arr:expr, $n:expr) => {
+    if let Some(e) = $arr.get($n)? {
+      e
+    } else {
+      return Err(Error::new(
+        Status::InvalidArg,
+        format!(
+          "Found inconsistent data type in Array[{}] when converting to Rust T",
+          $n
+        )
+        .to_owned(),
+      ));
+    }
+  };
+}
+
+macro_rules! tuple_from_napi_value {
+  ($total:expr, $($n:expr),+) => {
+    unsafe fn from_napi_value(env: sys::napi_env, napi_val: sys::napi_value) -> Result<Self> {
+      let arr = unsafe { Array::from_napi_value(env, napi_val)? };
+      if arr.len() < $total {
+        return Err(Error::new(
+            Status::InvalidArg,
+            format!("Array length < {}",$total).to_owned(),
+        ));
+      }
+      Ok(($(arr_get!(arr,$n)),+))
+    }
+  }
+}
+
+impl<T0, T1> FromNapiValue for (T0, T1)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+{
+  tuple_from_napi_value!(2, 0, 1);
+}
+
+impl<T0, T1, T2> FromNapiValue for (T0, T1, T2)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+{
+  tuple_from_napi_value!(3, 0, 1, 2);
+}
+
+impl<T0, T1, T2, T3> FromNapiValue for (T0, T1, T2, T3)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+{
+  tuple_from_napi_value!(4, 0, 1, 2, 3);
+}
+
+impl<T0, T1, T2, T3, T4> FromNapiValue for (T0, T1, T2, T3, T4)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+  T4: FromNapiValue,
+{
+  tuple_from_napi_value!(5, 0, 1, 2, 3, 4);
+}
+
+impl<T0, T1, T2, T3, T4, T5> FromNapiValue for (T0, T1, T2, T3, T4, T5)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+  T4: FromNapiValue,
+  T5: FromNapiValue,
+{
+  tuple_from_napi_value!(6, 0, 1, 2, 3, 4, 5);
+}
+
+impl<T0, T1, T2, T3, T4, T5, T6> FromNapiValue for (T0, T1, T2, T3, T4, T5, T6)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+  T4: FromNapiValue,
+  T5: FromNapiValue,
+  T6: FromNapiValue,
+{
+  tuple_from_napi_value!(7, 0, 1, 2, 3, 4, 5, 6);
+}
+
+impl<T0, T1, T2, T3, T4, T5, T6, T7> FromNapiValue for (T0, T1, T2, T3, T4, T5, T6, T7)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+  T4: FromNapiValue,
+  T5: FromNapiValue,
+  T6: FromNapiValue,
+  T7: FromNapiValue,
+{
+  tuple_from_napi_value!(8, 0, 1, 2, 3, 4, 5, 6, 7);
+}
+
+impl<T0, T1, T2, T3, T4, T5, T6, T7, T8> FromNapiValue for (T0, T1, T2, T3, T4, T5, T6, T7, T8)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+  T4: FromNapiValue,
+  T5: FromNapiValue,
+  T6: FromNapiValue,
+  T7: FromNapiValue,
+  T8: FromNapiValue,
+{
+  tuple_from_napi_value!(9, 0, 1, 2, 3, 4, 5, 6, 7, 8);
+}
+
+impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9> FromNapiValue
+  for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+  T4: FromNapiValue,
+  T5: FromNapiValue,
+  T6: FromNapiValue,
+  T7: FromNapiValue,
+  T8: FromNapiValue,
+  T9: FromNapiValue,
+{
+  tuple_from_napi_value!(10, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9);
+}
+
+impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> FromNapiValue
+  for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+  T4: FromNapiValue,
+  T5: FromNapiValue,
+  T6: FromNapiValue,
+  T7: FromNapiValue,
+  T8: FromNapiValue,
+  T9: FromNapiValue,
+  T10: FromNapiValue,
+{
+  tuple_from_napi_value!(11, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
+}
+
+impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> FromNapiValue
+  for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+  T4: FromNapiValue,
+  T5: FromNapiValue,
+  T6: FromNapiValue,
+  T7: FromNapiValue,
+  T8: FromNapiValue,
+  T9: FromNapiValue,
+  T10: FromNapiValue,
+  T11: FromNapiValue,
+{
+  tuple_from_napi_value!(12, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11);
+}
+
+impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> FromNapiValue
+  for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+  T4: FromNapiValue,
+  T5: FromNapiValue,
+  T6: FromNapiValue,
+  T7: FromNapiValue,
+  T8: FromNapiValue,
+  T9: FromNapiValue,
+  T10: FromNapiValue,
+  T11: FromNapiValue,
+  T12: FromNapiValue,
+{
+  tuple_from_napi_value!(13, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);
+}
+
+impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13> FromNapiValue
+  for (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13)
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+  T4: FromNapiValue,
+  T5: FromNapiValue,
+  T6: FromNapiValue,
+  T7: FromNapiValue,
+  T8: FromNapiValue,
+  T9: FromNapiValue,
+  T10: FromNapiValue,
+  T11: FromNapiValue,
+  T12: FromNapiValue,
+  T13: FromNapiValue,
+{
+  tuple_from_napi_value!(14, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13);
+}
+
+impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14> FromNapiValue
+  for (
+    T0,
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+  )
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+  T4: FromNapiValue,
+  T5: FromNapiValue,
+  T6: FromNapiValue,
+  T7: FromNapiValue,
+  T8: FromNapiValue,
+  T9: FromNapiValue,
+  T10: FromNapiValue,
+  T11: FromNapiValue,
+  T12: FromNapiValue,
+  T13: FromNapiValue,
+  T14: FromNapiValue,
+{
+  tuple_from_napi_value!(15, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14);
+}
+
+impl<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> FromNapiValue
+  for (
+    T0,
+    T1,
+    T2,
+    T3,
+    T4,
+    T5,
+    T6,
+    T7,
+    T8,
+    T9,
+    T10,
+    T11,
+    T12,
+    T13,
+    T14,
+    T15,
+  )
+where
+  T0: FromNapiValue,
+  T1: FromNapiValue,
+  T2: FromNapiValue,
+  T3: FromNapiValue,
+  T4: FromNapiValue,
+  T5: FromNapiValue,
+  T6: FromNapiValue,
+  T7: FromNapiValue,
+  T8: FromNapiValue,
+  T9: FromNapiValue,
+  T10: FromNapiValue,
+  T11: FromNapiValue,
+  T12: FromNapiValue,
+  T13: FromNapiValue,
+  T14: FromNapiValue,
+  T15: FromNapiValue,
+{
+  tuple_from_napi_value!(16, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
+}
diff --git a/crates/napi/src/bindgen_runtime/js_values/either.rs b/crates/napi/src/bindgen_runtime/js_values/either.rs
index 38fa5064..840f1526 100644
--- a/crates/napi/src/bindgen_runtime/js_values/either.rs
+++ b/crates/napi/src/bindgen_runtime/js_values/either.rs
@@ -10,6 +10,21 @@ pub enum Either<A, B> {
   B(B),
 }
 
+unsafe impl<A: Send, B: Send> Send for Either<A, B> {}
+unsafe impl<A: Sync, B: Sync> Sync for Either<A, B> {}
+
+impl<A: AsRef<T>, B: AsRef<T>, T> AsRef<T> for Either<A, B>
+where
+  T: ?Sized,
+{
+  fn as_ref(&self) -> &T {
+    match &self {
+      Self::A(a) => a.as_ref(),
+      Self::B(b) => b.as_ref(),
+    }
+  }
+}
+
 impl<A: NapiRaw, B: NapiRaw> Either<A, B> {
   /// # Safety
   /// Backward compatible with `Either` in **v1**
diff --git a/crates/napi/src/bindgen_runtime/js_values/external.rs b/crates/napi/src/bindgen_runtime/js_values/external.rs
index 3ce29a13..6243c3c5 100644
--- a/crates/napi/src/bindgen_runtime/js_values/external.rs
+++ b/crates/napi/src/bindgen_runtime/js_values/external.rs
@@ -3,9 +3,8 @@ use std::{
   ops::{Deref, DerefMut},
 };
 
-use crate::{check_status, sys, Error, Status, TaggedObject};
-
 use super::{FromNapiValue, ToNapiValue, TypeName, ValidateNapiValue};
+use crate::{check_status, sys, Error, Status, TaggedObject};
 
 pub struct External<T: 'static> {
   obj: *mut TaggedObject<T>,
@@ -23,6 +22,12 @@ impl<T: 'static> TypeName for External<T> {
   }
 }
 
+impl<T: 'static> From<T> for External<T> {
+  fn from(t: T) -> Self {
+    External::new(t)
+  }
+}
+
 impl<T: 'static> ValidateNapiValue for External<T> {}
 
 impl<T: 'static> External<T> {
diff --git a/crates/napi/src/js_values/de.rs b/crates/napi/src/js_values/de.rs
index b0b69057..657f7fa7 100644
--- a/crates/napi/src/js_values/de.rs
+++ b/crates/napi/src/js_values/de.rs
@@ -126,7 +126,7 @@ impl<'x, 'de, 'env> serde::de::Deserializer<'x> for &'de mut De<'env> {
           ))
         } else {
           let key = properties.get_element::<JsString>(0)?;
-          let value: JsUnknown = js_object.get_property(&key)?;
+          let value: JsUnknown = js_object.get_property(key)?;
           visitor.visit_enum(JsEnumAccess::new(
             key.into_utf8()?.into_owned()?,
             Some(&value.0),
@@ -354,7 +354,7 @@ impl<'de, 'env> MapAccess<'de> for JsObjectAccess<'env> {
       ));
     }
     let prop_name = self.properties.get_element::<JsString>(self.idx)?;
-    let value: JsUnknown = self.value.get_property(&prop_name)?;
+    let value: JsUnknown = self.value.get_property(prop_name)?;
 
     self.idx += 1;
     let mut de = De(&value.0);