Document return type of get_by_uri and get_by_id
Document return type of get_by_uri and get_by_id

jodal/mopidy,diandiankan/mopidy,liamw9534/mopidy,adamcik/mopidy,ali/mopidy,rawdlite/mopidy,pacificIT/mopidy,ZenithDK/mopidy,bacontext/mopidy,priestd09/mopidy,dbrgn/mopidy,vrs01/mopidy,vrs01/mopidy,bencevans/mopidy,kingosticks/mopidy,woutervanwijk/mopidy,swak/mopidy,quartz55/mopidy,SuperStarPL/mopidy,jmarsik/mopidy,dbrgn/mopidy,ali/mopidy,swak/mopidy,mokieyue/mopidy,mokieyue/mopidy,woutervanwijk/mopidy,jmarsik/mopidy,adamcik/mopidy,swak/mopidy,quartz55/mopidy,glogiotatidis/mopidy,ali/mopidy,mopidy/mopidy,mokieyue/mopidy,rawdlite/mopidy,glogiotatidis/mopidy,mopidy/mopidy,pacificIT/mopidy,mopidy/mopidy,jodal/mopidy,kingosticks/mopidy,bacontext/mopidy,bencevans/mopidy,jcass77/mopidy,quartz55/mopidy,mokieyue/mopidy,diandiankan/mopidy,priestd09/mopidy,bencevans/mopidy,vrs01/mopidy,SuperStarPL/mopidy,glogiotatidis/mopidy,abarisain/mopidy,tkem/mopidy,swak/mopidy,bacontext/mopidy,rawdlite/mopidy,hkariti/mopidy,SuperStarPL/mopidy,pacificIT/mopidy,rawdlite/mopidy,dbrgn/mopidy,hkariti/mopidy,ZenithDK/mopidy,ZenithDK/mopidy,kingosticks/mopidy,SuperStarPL/mopidy,vrs01/mopidy,quartz55/mopidy,tkem/mopidy,priestd09/mopidy,hkariti/mopidy,jmarsik/mopidy,diandiankan/mopidy,hkariti/mopidy,bacontext/mopidy,abarisain/mopidy,bencevans/mopidy,adamcik/mopidy,jodal/mopidy,diandiankan/mopidy,ali/mopidy,dbrgn/mopidy,jcass77/mopidy,pacificIT/mopidy,jmarsik/mopidy,glogiotatidis/mopidy,tkem/mopidy,ZenithDK/mopidy,jcass77/mopidy,tkem/mopidy,liamw9534/mopidy