Inheriting from Argument in order to represent an EPSG Code. Allowed values are single integer values like 4326 or a text containing 'EPSG:' like EPSG:4326.
Object of R6::R6Class() representing an EPSG code as Integer
Array, Integer, EPSGCode, String, Number, Date, DataCube, ProcessGraphArgument, ProcessGraphParameter, OutputFormatOptions, GeoJson, Boolean, DateTime, Time, BoundingBox, Kernel, TemporalInterval, TemporalIntervals, CollectionId, OutputFormat, AnyOf, ProjDefinition, UdfCodeArgument, UdfRuntimeArgument and UdfRuntimeVersionArgument, MetadataFilter