Add or make public get_elements for sequences/dicts

vm/src/objdict.rs

@@ -26,7 +26,7 @@ pub fn new(dict_type: PyObjectRef) -> PyObjectRef {
     )
 }
 
-fn get_elements(obj: &PyObjectRef) -> HashMap<String, PyObjectRef> {
+pub fn get_elements(obj: &PyObjectRef) -> HashMap<String, PyObjectRef> {
     if let PyObjectKind::Dict { elements } = &obj.borrow().kind {
         elements.clone()
     } else {

vm/src/objlist.rs

@@ -26,7 +26,7 @@ pub fn set_item(
     }
 }
 
-fn get_elements(obj: PyObjectRef) -> Vec<PyObjectRef> {
+pub fn get_elements(obj: PyObjectRef) -> Vec<PyObjectRef> {
     if let PyObjectKind::List { elements } = &obj.borrow().kind {
         elements.to_vec()
     } else {

vm/src/objsequence.rs

@@ -98,3 +98,11 @@ pub fn get_item(
         ))),
     }
 }
+
+pub fn get_elements(obj: PyObjectRef) -> Vec<PyObjectRef> {
+    if let PyObjectKind::Tuple { elements } = &obj.borrow().kind {
+        elements.to_vec()
+    } else {
+        panic!("Cannot extract list elements from non-list");
+    }
+}