This function converts an Ordnance Survey (OS) grid reference to easting/northing or latitude/longitude coordinates.
osg_parse(grid_refs, coord_system = c("BNG", "WGS84"))
This is a string (or a character vector) that contains the OS grid Reference.
By default, this is "BNG" which stands for British National Grids. The other option is to set coord_system = "WGS84", which returns latitude/longitude coordinates (more info can be found here https://www.epsg-registry.org/).
vector made of two elements: the easting and northing (by default) or latitude and longitude coordinates.