diff --git a/valuescript_vm/src/array_higher_functions/array_mapping_frame.rs b/valuescript_vm/src/array_higher_functions/array_mapping_frame.rs
index 7f06ecd..d46d653 100644
--- a/valuescript_vm/src/array_higher_functions/array_mapping_frame.rs
+++ b/valuescript_vm/src/array_higher_functions/array_mapping_frame.rs
@@ -1,3 +1,4 @@
+use std::any::Any;
 use std::rc::Rc;
 
 use crate::builtins::type_error_builtin::ToTypeError;
@@ -155,4 +156,12 @@ impl StackFrameTrait for ArrayMappingFrame {
   fn clone_to_stack_frame(&self) -> StackFrame {
     Box::new(self.clone())
   }
+
+  fn as_any(&self) -> &dyn Any {
+    self
+  }
+
+  fn as_any_mut(&mut self) -> &mut dyn Any {
+    self
+  }
 }
diff --git a/valuescript_vm/src/array_higher_functions/array_reduce.rs b/valuescript_vm/src/array_higher_functions/array_reduce.rs
index afcd039..01c57a5 100644
--- a/valuescript_vm/src/array_higher_functions/array_reduce.rs
+++ b/valuescript_vm/src/array_higher_functions/array_reduce.rs
@@ -1,3 +1,4 @@
+use std::any::Any;
 use std::rc::Rc;
 
 use crate::builtins::type_error_builtin::ToTypeError;
@@ -120,4 +121,12 @@ impl StackFrameTrait for ReduceFrame {
   fn clone_to_stack_frame(&self) -> StackFrame {
     Box::new(self.clone())
   }
+
+  fn as_any(&self) -> &dyn Any {
+    self
+  }
+
+  fn as_any_mut(&mut self) -> &mut dyn Any {
+    self
+  }
 }
diff --git a/valuescript_vm/src/array_higher_functions/array_reduce_right.rs b/valuescript_vm/src/array_higher_functions/array_reduce_right.rs
index d0daadb..bb8b1f4 100644
--- a/valuescript_vm/src/array_higher_functions/array_reduce_right.rs
+++ b/valuescript_vm/src/array_higher_functions/array_reduce_right.rs
@@ -1,3 +1,4 @@
+use std::any::Any;
 use std::rc::Rc;
 
 use crate::builtins::type_error_builtin::ToTypeError;
@@ -133,4 +134,12 @@ impl StackFrameTrait for ReduceRightFrame {
   fn clone_to_stack_frame(&self) -> StackFrame {
     Box::new(self.clone())
   }
+
+  fn as_any(&self) -> &dyn Any {
+    self
+  }
+
+  fn as_any_mut(&mut self) -> &mut dyn Any {
+    self
+  }
 }
diff --git a/valuescript_vm/src/array_higher_functions/array_sort.rs b/valuescript_vm/src/array_higher_functions/array_sort.rs
index 9988e42..f24075c 100644
--- a/valuescript_vm/src/array_higher_functions/array_sort.rs
+++ b/valuescript_vm/src/array_higher_functions/array_sort.rs
@@ -1,3 +1,4 @@
+use std::any::Any;
 use std::rc::Rc;
 
 use crate::builtins::type_error_builtin::ToTypeError;
@@ -314,4 +315,12 @@ impl StackFrameTrait for SortFrame {
   fn clone_to_stack_frame(&self) -> StackFrame {
     Box::new(self.clone())
   }
+
+  fn as_any(&self) -> &dyn Any {
+    self
+  }
+
+  fn as_any_mut(&mut self) -> &mut dyn Any {
+    self
+  }
 }
diff --git a/valuescript_vm/src/bytecode_stack_frame.rs b/valuescript_vm/src/bytecode_stack_frame.rs
index 615dc7e..1c5120e 100644
--- a/valuescript_vm/src/bytecode_stack_frame.rs
+++ b/valuescript_vm/src/bytecode_stack_frame.rs
@@ -1,3 +1,4 @@
+use std::any::Any;
 use std::mem::take;
 
 use valuescript_common::InstructionByte;
@@ -732,4 +733,12 @@ impl StackFrameTrait for BytecodeStackFrame {
   fn clone_to_stack_frame(&self) -> StackFrame {
     Box::new(self.clone())
   }
+
+  fn as_any(&self) -> &dyn Any {
+    self
+  }
+
+  fn as_any_mut(&mut self) -> &mut dyn Any {
+    self
+  }
 }
diff --git a/valuescript_vm/src/cat_stack_frame.rs b/valuescript_vm/src/cat_stack_frame.rs
index ecd4646..c9ed077 100644
--- a/valuescript_vm/src/cat_stack_frame.rs
+++ b/valuescript_vm/src/cat_stack_frame.rs
@@ -1,4 +1,4 @@
-use std::{mem::take, rc::Rc};
+use std::{any::Any, mem::take, rc::Rc};
 
 use crate::{
   builtins::{internal_error_builtin::ToInternalError, type_error_builtin::ToTypeError},
@@ -154,4 +154,12 @@ impl StackFrameTrait for CatStackFrame {
   fn clone_to_stack_frame(&self) -> StackFrame {
     Box::new(self.clone())
   }
+
+  fn as_any(&self) -> &dyn Any {
+    self
+  }
+
+  fn as_any_mut(&mut self) -> &mut dyn Any {
+    self
+  }
 }
diff --git a/valuescript_vm/src/first_stack_frame.rs b/valuescript_vm/src/first_stack_frame.rs
index 70544f3..cb3f035 100644
--- a/valuescript_vm/src/first_stack_frame.rs
+++ b/valuescript_vm/src/first_stack_frame.rs
@@ -1,3 +1,5 @@
+use std::any::Any;
+
 use crate::stack_frame::StackFrame;
 
 use super::stack_frame::{CallResult, FrameStepResult, StackFrameTrait};
@@ -58,4 +60,12 @@ impl StackFrameTrait for FirstStackFrame {
   fn clone_to_stack_frame(&self) -> StackFrame {
     Box::new(self.clone())
   }
+
+  fn as_any(&self) -> &dyn Any {
+    self
+  }
+
+  fn as_any_mut(&mut self) -> &mut dyn Any {
+    self
+  }
 }
diff --git a/valuescript_vm/src/generator.rs b/valuescript_vm/src/generator.rs
index 020b93d..ad4e80d 100644
--- a/valuescript_vm/src/generator.rs
+++ b/valuescript_vm/src/generator.rs
@@ -1,4 +1,5 @@
 use std::{
+  any::Any,
   fmt,
   mem::{swap, take},
   rc::Rc,
@@ -241,6 +242,14 @@ impl StackFrameTrait for GeneratorFrame {
   fn clone_to_stack_frame(&self) -> StackFrame {
     Box::new(self.clone())
   }
+
+  fn as_any(&self) -> &dyn Any {
+    self
+  }
+
+  fn as_any_mut(&mut self) -> &mut dyn Any {
+    self
+  }
 }
 
 #[derive(Clone, Default)]
@@ -356,4 +365,12 @@ impl StackFrameTrait for YieldStarFrame {
   fn clone_to_stack_frame(&self) -> StackFrame {
     Box::new(self.clone())
   }
+
+  fn as_any(&self) -> &dyn Any {
+    self
+  }
+
+  fn as_any_mut(&mut self) -> &mut dyn Any {
+    self
+  }
 }
diff --git a/valuescript_vm/src/make_generator_frame.rs b/valuescript_vm/src/make_generator_frame.rs
index a447362..bd547f8 100644
--- a/valuescript_vm/src/make_generator_frame.rs
+++ b/valuescript_vm/src/make_generator_frame.rs
@@ -1,4 +1,4 @@
-use std::mem::take;
+use std::{any::Any, mem::take};
 
 use crate::{
   bytecode_stack_frame::BytecodeStackFrame,
@@ -61,4 +61,12 @@ impl StackFrameTrait for MakeGeneratorFrame {
   fn clone_to_stack_frame(&self) -> StackFrame {
     Box::new(self.clone())
   }
+
+  fn as_any(&self) -> &dyn Any {
+    self
+  }
+
+  fn as_any_mut(&mut self) -> &mut dyn Any {
+    self
+  }
 }
diff --git a/valuescript_vm/src/stack_frame.rs b/valuescript_vm/src/stack_frame.rs
index 6002a77..3cea2f5 100644
--- a/valuescript_vm/src/stack_frame.rs
+++ b/valuescript_vm/src/stack_frame.rs
@@ -20,7 +20,7 @@ pub enum FrameStepOk {
 
 pub type FrameStepResult = Result<FrameStepOk, Val>;
 
-pub trait StackFrameTrait: Any {
+pub trait StackFrameTrait {
   fn write_this(&mut self, const_: bool, this: Val) -> Result<(), Val>;
   fn write_param(&mut self, param: Val);
   fn step(&mut self) -> FrameStepResult;
@@ -29,6 +29,8 @@ pub trait StackFrameTrait: Any {
   fn can_catch_exception(&self, exception: &Val) -> bool;
   fn catch_exception(&mut self, exception: &mut Val);
   fn clone_to_stack_frame(&self) -> StackFrame;
+  fn as_any(&self) -> &dyn Any;
+  fn as_any_mut(&mut self) -> &mut dyn Any;
 }
 
 impl Clone for StackFrame {
@@ -75,4 +77,12 @@ impl StackFrameTrait for VoidStackFrame {
   fn clone_to_stack_frame(&self) -> StackFrame {
     Box::new(self.clone())
   }
+
+  fn as_any(&self) -> &dyn Any {
+    self
+  }
+
+  fn as_any_mut(&mut self) -> &mut dyn Any {
+    self
+  }
 }