devtools::load_all('~/Documents/rrr-forks/tmap')
#> ℹ Loading tmap
tm_basemap(server = "OpenTopoMap", zoom = 2, alpha = 0.5) +
    tm_shape(World, bbox = sf::st_bbox(c(xmin = -180, xmax = 180, ymin = -86, ymax = 86))) +
    tm_polygons(fill = NA, col = "black") +
    tm_shape(metro) +
    tm_symbols(size = 0.1, col = "red") +
    tm_layout(inner.margins = rep(0, 4))
#> Warning: Current projection unknown. Long lat coordinates (wgs84) assumed.
#> Error in with(tmf, {: argument "tmf" is missing, with no default