internal package are not allowed, except it is from the same project. So should not suggested by autocompletion. <img width="576" alt="screen shot 2017-10-01 at 1 37 40 pm" src="https://user-images.githubusercontent.com/166053/31053495-b876df02-a6c8-11e7-84b5-2d3f3c710930.png"> <img width="313" alt="screen shot 2017-10-01 at 1 37 59 pm" src="https://user-images.githubusercontent.com/166053/31053496-bcdc398e-a6c8-11e7-917a-1547c4a70927.png"> <img width="523" alt="screen shot 2017-10-01 at 2 31 19 pm" src="https://user-images.githubusercontent.com/166053/31053497-bf356426-a6c8-11e7-9285-de59a64e0d86.png">
internal package are not allowed, except it is from the same project. So should not suggested by autocompletion.