Can [payment_limited](https://github.com/casper-network/casper-node/blob/release-2.1.0/resources/production/chainspec.toml#L129-L133) be added on [PricingMode](https://docs.casper.network/developers/json-rpc/types_chain#pricingmode) please?
Can payment_limited be added on
PricingMode please?