A 'shiny' module to display 'leaflet' chart with options
map(input, output, session, g, noopt = 0)is shiny input variable
is shiny output variable
is shiny session variable
is the graph/chart to be charted
is a toggle that tells chart module not to display options to change chart defaults
Options for 'leaflet' are shapes or circles on map, basemap, function to apply, color palette, fill opacity, and circle scale