## Not run:
# (res <- geojson_list(us_cities[1:2,], lat='lat', lon='long'))
# as.json(res)
# as.json(res, pretty = TRUE)
#
# vec <- c(-99.74,32.45)
# as.json(geojson_list(vec))
# as.json(geojson_list(vec), pretty = TRUE)
# ## End(Not run)
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