diff --git a/src/ytdl_sub/script/types/array.py b/src/ytdl_sub/script/types/array.py
index 13c4f99d..e6633f86 100644
--- a/src/ytdl_sub/script/types/array.py
+++ b/src/ytdl_sub/script/types/array.py
@@ -1,4 +1,5 @@
 from dataclasses import dataclass
+from typing import Any
 from typing import Dict
 from typing import List
 
@@ -47,4 +48,6 @@ class UnresolvedArray(Array, VariableDependency, AnyArgument):
 
 @dataclass(frozen=True)
 class ResolvedArray(Array, ResolvableToJson):
-    pass
+    @property
+    def native(self) -> Any:
+        return [val.native for val in self.value]
diff --git a/src/ytdl_sub/script/types/map.py b/src/ytdl_sub/script/types/map.py
index 60b99b0b..9024306b 100644
--- a/src/ytdl_sub/script/types/map.py
+++ b/src/ytdl_sub/script/types/map.py
@@ -1,5 +1,6 @@
 import itertools
 from dataclasses import dataclass
+from typing import Any
 from typing import Dict
 from typing import List
 
@@ -55,4 +56,6 @@ class UnresolvedMap(Map, VariableDependency, AnyArgument):
 
 @dataclass(frozen=True)
 class ResolvedMap(Map, ResolvableToJson):
-    pass
+    @property
+    def native(self) -> Any:
+        return {key.native: value.native for key, value in self.value.items()}
diff --git a/src/ytdl_sub/script/types/resolvable.py b/src/ytdl_sub/script/types/resolvable.py
index cbda1fc7..7282393b 100644
--- a/src/ytdl_sub/script/types/resolvable.py
+++ b/src/ytdl_sub/script/types/resolvable.py
@@ -75,6 +75,10 @@ class Resolvable(AnyArgument, ABC):
     def __str__(self) -> str:
         return str(self.value)
 
+    @property
+    def native(self) -> Any:
+        return self.value
+
 
 @dataclass(frozen=True)
 class Hashable(Resolvable, ABC):
@@ -88,19 +92,8 @@ class NonHashable(ABC):
 
 @dataclass(frozen=True)
 class ResolvableToJson(Resolvable, ABC):
-    @classmethod
-    def _to_native(cls, to_convert: Resolvable) -> Any:
-        if isinstance(to_convert.value, list):
-            return [cls._to_native(val) for val in to_convert.value]
-        if isinstance(to_convert.value, dict):
-            return {
-                cls._to_native(key): cls._to_native(value)
-                for key, value in to_convert.value.items()
-            }
-        return to_convert.value
-
     def __str__(self):
-        return json.dumps(self._to_native(self))
+        return json.dumps(self.native)
 
 
 @dataclass(frozen=True)
@@ -158,3 +151,6 @@ class TypeHintedFunctionType(FunctionType, ABC):
 @dataclass(frozen=True)
 class Lambda(Resolvable):
     value: str
+
+    def native(self) -> Any:
+        return f"%{self.value}"
diff --git a/tests/unit/script/functions/__init__.py b/tests/unit/script/functions/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/unit/script/functions/test_array_functions.py b/tests/unit/script/functions/test_array_functions.py
new file mode 100644
index 00000000..6a316787
--- /dev/null
+++ b/tests/unit/script/functions/test_array_functions.py
@@ -0,0 +1,20 @@
+from ytdl_sub.script.script import Script
+
+
+class TestArrayFunctions:
+    def test_array_extend(self):
+        assert Script(
+            {
+                "array1": "{['a', 3.14]}",
+                "array2": "{['b', 8.8]}",
+                "array3": "{['c', 3.17]}",
+                "array_extended_output": "{%array_extend(array1, array2, array3)}",
+            }
+        ).resolve(update=True).get("array_extended_output").native == [
+            "a",
+            3.14,
+            "b",
+            8.8,
+            "c",
+            3.17,
+        ]