/usr/lib/R/site-library/gmaps/NAMESPACE is in r-cran-gmaps 0.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13  | #Namespace for gmaps package
export(
	grid.mapGrob,
	mapGrob,
	validDetails.mapGrob,
	USALevelPlot,
	grid.USALevelPlot,
	gradientLegendGrob,
	grid.gradientLegendGrob,
	widthDetails.gradientLegendGrob,
	heightDetails.gradientLegendGrob,
	reds,blues,greens
)    
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