public final Data getUndefinedDataBefore(Address address) {
		return currentProgram.getListing().getUndefinedDataBefore(address, monitor);
	}
Returns the undefined data before the specified address or null if no undefined data exists.
@param address the undefined data address
@return the undefined data before the specified address or null if no undefined data exists
Ghidra/Features/Base/src/main/java/ghidra/program/flatapi/FlatProgramAPI.java