@property<EOL><INDENT>def total_sky_cover(self):<DEDENT>
return self._get_data_by_field(<NUM_LIT>)<EOL>
Return annual Total Sky Cover as a Ladybug Data Collection.

        This is the value for total sky cover (tenths of coverage). (i.e. 1 is 1/10
        covered. 10 is total coverage). (Amount of sky dome in tenths covered by clouds
        or obscuring phenomena at the hour indicated at the time indicated.) Minimum
        value is 0; maximum value is 10; missing value is 99.

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