dev: make Memory::get pub

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 #### Upcoming Changes
 
+* dev: add Memory::get_maybe_relocatable  [#2039](https://github.com/lambdaclass/cairo-vm/pull/2039)
+
 * refactor: remove duplicated get_val function [#2065](https://github.com/lambdaclass/cairo-vm/pull/2065)
 
 * fix: Always use a normal segment in first SegmentArena segment [#1845](https://github.com/lambdaclass/cairo-vm/pull/1845)

vm/src/vm/vm_memory/memory.rs

@@ -448,6 +448,18 @@ impl Memory {
         }
     }
 
+    /// Gets the value from memory address as a MaybeRelocatable value.
+    /// Returns an Error if the value at the memory address is missing or not a MaybeRelocatable.
+    pub fn get_maybe_relocatable(&self, key: Relocatable) -> Result<MaybeRelocatable, MemoryError> {
+        match self
+            .get(&key)
+            .ok_or_else(|| MemoryError::UnknownMemoryCell(Box::new(key)))?
+        {
+            Cow::Borrowed(maybe_rel) => Ok(maybe_rel.clone()),
+            Cow::Owned(maybe_rel) => Ok(maybe_rel),
+        }
+    }
+
     /// Inserts a value into memory
     /// Returns an error if the memory cell asignment is invalid
     pub fn insert_value<T: Into<MaybeRelocatable>>(