# NOT RUN {
Rnightlights:::allValidNlPeriods(c("201401", "201402"),"VIIRS.M")
#returns TRUE
Rnightlights:::allValidNlPeriods("201203","VIIRS.M")
#returns FALSE
Rnightlights:::allValidNlPeriods("2012","OLS.Y")
#returns TRUE
# }
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