from pydantic import BaseModel
from enum import Enum

class MessageModel(BaseModel):
    text: str

class QueryModel(BaseModel):
    sender: str
    message: MessageModel

class AppModel(BaseModel):
    version: str

class InputModel(BaseModel):
    _version: int
    query: QueryModel
    app: AppModel

class OutputModel(BaseModel):
    action: 'ActionModel'
    sub_action: 'SubActionModel'

class ReportModel(BaseModel):
    sender: str
    message: str