id = 1555175244188986000,pos = 0,
         cache = {emails,1555175169122304000},
         args = [],
         feed = {list,1555175169120161000},
         dir = 0}

 > kvs:take(kvs:bot((kvs:load_reader(1555175244188986000))#reader{args=-1})).
 #reader{id = 1555175244188986000,pos = 5,
         cache = {emails,1555175169127279000},
         args = [#emails{id = 1555175169127279000,next = [],
                         prev = 1555175169126314000,email = []},
                 #emails{id = 1555175169126314000,next