Returns the list of fiat currencies supported by an on-ramp provider for the given cryptocurrency. Request type for Tdjson#getOnRampProviderBaseCurrencies.
The cryptocurrency that will be bought.
Unique identifier of the on-ramp provider; only for providers that supports base currencies.
Returns the list of fiat currencies supported by an on-ramp provider for the given cryptocurrency. Request type for Tdjson#getOnRampProviderBaseCurrencies.