Function fadroma::snip20_impl::transfer_from_impl

pub fn transfer_from_impl<S: Storage, A: Api, Q: Querier>(
    deps: &mut Extern<S, A, Q>, 
    env: &Env, 
    spender: &CanonicalAddr, 
    owner: &CanonicalAddr, 
    recipient: &CanonicalAddr, 
    amount: Uint128, 
    memo: Option<String>
) -> StdResult<()>