usecosmwasm_std::{Addr, Api, StdResult};pubtypeService= Addr;pubtypeOperator= Addr;/// Validate a list of addresses
/// Return a vector of validated addresses
pubfnvalidate_addrs(api:&dyn Api, addr:&[String])->StdResult<Vec<Addr>>{
addr.iter().map(|addr|api.addr_validate(addr)).collect()}