It truly is tricky for me to guess your intention. On just one hand you are indicating that both of those a and b are public (no primary underscore of their names) so I should really theoretically be permitted to obtain/mutate (get/established) each. But You then specify an specific mutator https://smartworldeveloper.in/smart-world-69-gurgaon-redefining-urban-luxury-living-in-sector-69/