public Map<String, Boolean> getKeys() {
		return keys;
	}
Returns the program info from the underlying file. T``his method does not
make sense to invoke if a write is being performed to a new file.

@return the program info
@throws IOException if an I/O error occurs
Ghidra/Features/Sarif/src/main/java/sarif/managers/ProgramSarifMgr.java