Add rationale types to op_faker

@@ -24,6 +24,7 @@ class OP_Provider(BaseProvider):
     classifications = __fake_data.classifications
     cpvs = __fake_data.cpvs
     items_base_data = __fake_data.items_base_data
+    rationale_types = __fake_data.rationale_types
 
     @classmethod
     def randomize_nb_elements(self, number=10, le=60, ge=140):
@@ -149,4 +150,16 @@ class OP_Provider(BaseProvider):
                 "description_ru": item_base_data["description_ru"],
                 "description_en": item_base_data["description_en"]
             })
-        return deepcopy(item)
\ No newline at end of file
+        return deepcopy(item)
+
+    @classmethod
+    def rationaleTypes(self, amount=3):
+        if amount >= len(self.rationale_types):
+            return self.rationale_types
+        result = []
+        for _ in range(amount):
+            element = self.random_element(self.rationale_types)
+            while element in result:
+                element = self.random_element(self.rationale_types)
+            result.append(element)
+        return result

@@ -8033,5 +8033,15 @@
                 "name": "набір"
             }
         }
+    ],
+    "rationale_types": [
+        "volumeCuts",
+        "itemPriceVariation",
+        "qualityImprovement",
+        "durationExtension",
+        "priceReduction",
+        "taxRate",
+        "thirdParty",
+        "fiscalYearExtension"
     ]
 }