diff --git a/fuzzer/datatypes.py b/fuzzer/datatypes.py
index cac8113..1f1981b 100644
--- a/fuzzer/datatypes.py
+++ b/fuzzer/datatypes.py
@@ -25,6 +25,9 @@ class Order:
     invoice_amount: int
     order_date: str  # Assuming timestamp as a string for simplicity
 
+    def dict(self):
+        return {k: str(v) for k, v in asdict(self).items()}
+
 
 @dataclass
 class Ingredient:
@@ -37,6 +40,9 @@ class Ingredient:
     calories: int
     protein: int
 
+    def dict(self):
+        return {k: str(v) for k, v in asdict(self).items()}
+
 
 @dataclass
 class Supplier:
@@ -49,6 +55,9 @@ class Supplier:
     house_number: str
     postal_code: int
 
+    def dict(self):
+        return {k: str(v) for k, v in asdict(self).items()}
+
 
 @dataclass
 class SupplierContainsIngredients:
@@ -57,9 +66,16 @@ class SupplierContainsIngredients:
     delivery_cost: int
     delivery_time: int
 
+    def dict(self):
+        return {k: str(v) for k, v in asdict(self).items()}
+
 
 @dataclass
 class OrderContainsIngredients:
     order: Order
     ingredient: Ingredient
     quantity: int
+
+    def dict(self):
+        return {k: str(v) for k, v in asdict(self).items()}
+