@Override
	public boolean isValid() {
		return super.isValid() && typ.getSize() == programContext.getPtrSize();
	}
Returns the GoType that defines the map's bucket, referenced by the bucket field's markup annotation

@return GoType that defines the map's bucket
@throws IOException if error reading data
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/golang/rtti/types/GoMapType.java