pub trait ProxyTrait: ProxyObjBase + Sized + ProxyTrait + ProxyTrait {
fn get_token_availability<Arg0: CodecInto<TokenIdentifier<Self::Api>>>(
&mut self,
identifier: Arg0
) -> ContractCallNoPayment<Self::Api, MultiValueEncoded<Self::Api, MultiValue2<u64, BigUint<Self::Api>>>> { ... }
}