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 R6Class() representing an EPSG code as Integer
Array(), Integer(), EPSGCode(), String(), Number(),
Date(), RasterCube(), VectorCube(), ProcessGraphArgument(),
ProcessGraphParameter(), OutputFormatOptions(), GeoJson(),
Boolean(), DateTime(), Time(), BoundingBox(), Kernel(),
TemporalInterval(), TemporalIntervals(), CollectionId(), OutputFormat(),
AnyOf(), ProjDefinition(), UdfCodeArgument(), UdfRuntimeArgument() and
UdfRuntimeVersionArgument(),TemporalIntervals(), MetadataFilter()