diff --git a/src/main/java/chocopy/pa3/CodeGenImpl.java b/src/main/java/chocopy/pa3/CodeGenImpl.java
index fee32c7..3225532 100644
--- a/src/main/java/chocopy/pa3/CodeGenImpl.java
+++ b/src/main/java/chocopy/pa3/CodeGenImpl.java
@@ -6,48 +6,10 @@ import java.util.Map;
 
 import chocopy.common.analysis.AbstractNodeAnalyzer;
 import chocopy.common.analysis.SymbolTable;
-import chocopy.common.astnodes.AssignStmt;
-import chocopy.common.astnodes.BinaryExpr;
-import chocopy.common.astnodes.BooleanLiteral;
-import chocopy.common.astnodes.CallExpr;
-import chocopy.common.astnodes.ClassDef;
-import chocopy.common.astnodes.ClassType;
-import chocopy.common.astnodes.CompilerError;
-import chocopy.common.astnodes.Errors;
-import chocopy.common.astnodes.Expr;
-import chocopy.common.astnodes.ExprStmt;
-import chocopy.common.astnodes.ForStmt;
-import chocopy.common.astnodes.FuncDef;
-import chocopy.common.astnodes.GlobalDecl;
-import chocopy.common.astnodes.Identifier;
-import chocopy.common.astnodes.IfExpr;
-import chocopy.common.astnodes.IfStmt;
-import chocopy.common.astnodes.IndexExpr;
-import chocopy.common.astnodes.IntegerLiteral;
-import chocopy.common.astnodes.ListExpr;
-import chocopy.common.astnodes.ListType;
-import chocopy.common.astnodes.MemberExpr;
-import chocopy.common.astnodes.MethodCallExpr;
-import chocopy.common.astnodes.NonLocalDecl;
-import chocopy.common.astnodes.NoneLiteral;
-import chocopy.common.astnodes.Program;
-import chocopy.common.astnodes.ReturnStmt;
-import chocopy.common.astnodes.Stmt;
-import chocopy.common.astnodes.StringLiteral;
-import chocopy.common.astnodes.TypedVar;
-import chocopy.common.astnodes.UnaryExpr;
-import chocopy.common.astnodes.VarDef;
-import chocopy.common.astnodes.WhileStmt;
 import chocopy.common.astnodes.*;
 import chocopy.common.analysis.types.*;
 import chocopy.common.codegen.*;
 
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-
-import com.fasterxml.jackson.core.JsonProcessingException;
 import static chocopy.common.codegen.RiscVBackend.Register.*;
 import chocopy.common.codegen.RiscVBackend.Register;