fn goto_down(&self) -> Result<()> {
        Err(Error::SpecifiedSchemaVersion(
            SchemaVersionError::MigrateToLowerNotSupported,
        ))
    }
/// Migrate downward methods (not implemented at the moment)
Migrate downward methods (not implemented at the moment)
Migrate downward methods ( not implemented at the moment )
fn goto_down(&self) -> Result<()> {
        Err(Error::SpecifiedSchemaVersion(
            SchemaVersionError::MigrateToLowerNotSupported,
        ))
    }
fn goto_down ( & self ) -> Result < ( ) > { Err ( Error :: SpecifiedSchemaVersion ( SchemaVersionError :: MigrateToLowerNotSupported , ) ) }
Migrate downward methods (not implemented at the moment)
Migrate downward methods ( not implemented at the moment )
&self
&self