DataType getDataType(long addr) {
		try {
			return getDataType(dataAdapter.getRecord(addr));
		}
		catch (IOException e) {
			program.dbError(e);
		}
		return null;
	}
Returns the reference manager being used by this code manager.

@return ReferenceManager the reference manager being used by this code manager
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/code/CodeManager.java