@property<EOL><INDENT>def visibility(self):<DEDENT>
return self._get_data_by_field(<NUM_LIT>)<EOL>
Return annual Visibility as a Ladybug Data Collection.

        This is the value for visibility in km. (Horizontal visibility at the time
        indicated.) It is not currently used in EnergyPlus calculations. Missing
        value is 9999.

        Read more at: https://energyplus.net/sites/all/modules/custom/nrel_custom/pdfs
            /pdfs_v8.4.0/AuxiliaryPrograms.pdf (Chapter 2.9.1)