@property<EOL><INDENT>def wind_direction(self):<DEDENT>
return self._get_data_by_field(<NUM_LIT:20>)<EOL>
Return annual Wind Direction as a Ladybug Data Collection.

        This is the Wind Direction in degrees where the convention is that North=0.0,
        East=90.0, South=180.0, West=270.0. (Wind direction in degrees at the time
        indicated. If calm, direction equals zero.) Values can range from 0 to 360.
        Missing value is 999.

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