Add RandomNumber schema

schemas/randomnumber.py

@@ -0,0 +1,21 @@
+from pydantic import BaseModel, Field
+
+class RandomNumberBase(BaseModel):
+    number: int = Field(..., description="A random integer number")
+
+class RandomNumberCreate(RandomNumberBase):
+    class Config:
+        schema_extra = {
+            "example": {
+                "number": 42
+            }
+        }
+
+class RandomNumber(RandomNumberBase):
+    class Config:
+        orm_mode = True
+        schema_extra = {
+            "example": {
+                "number": 42
+            }
+        }