<filename>instance/config.py
class Config:
    """
    funcion
    """
    pass


class ProConfig:
    """
    Production
    """


class DevConfig:
    """
    Development config
    """

    DEBUG = True

<filename>instance/config.py
class Config:
    """
    funcion
    """
    pass


class ProConfig:
    """
    Production
    """


class DevConfig:
    """
    Development config
    """

    DEBUG = True

funcion Production Development config