Add Message schema

schemas/message.py

@@ -0,0 +1,21 @@
+from pydantic import BaseModel, Field
+
+class MessageBase(BaseModel):
+    message: str = Field(default="yooo", min_length=1)
+
+class MessageCreate(MessageBase):
+    class Config:
+        schema_extra = {
+            "example": {
+                "message": "Hello, world!"
+            }
+        }
+
+class Message(MessageBase):
+    class Config:
+        orm_mode = True
+        schema_extra = {
+            "example": {
+                "message": "Hello, world!"
+            }
+        }