def METHOD_NAME(
    ctx: typer.Context,
    email: str = typer.Argument(
        ...,
        callback=lambda v: parse_obj_as(LowerCaseEmailStr, v),
        help="Custom invitation for a given guest",
    ),
    issuer: str = typer.Option(
        ..., help=InvitationInputs.__fields__["issuer"].field_info.description
    ),
    trial_account_days: Optional[int] = typer.Option(
        None,
        help=InvitationInputs.__fields__["trial_account_days"].field_info.description,
    ),