package Ġio . horizontal systems . bitcoin core . managers Ċ Ċ import Ġio . horizontal systems . bitcoin core . storage . Un spent Output Ċ Ċ interface ĠI Un spent Output Provider Ġ{ ĊĠĠĠ Ġfun ĠgetS pend able U tx o (): ĠList < Un spent Output > Ċ } Ċ