@NotNull
public Document getDocument(@NotNull FragmentSide side) {
return myDocuments[side.getIndex()];
}
public int getStart(@NotNull FragmentSide side) {
return myStarts[side.getIndex()];
}
@Override
@NotNull
public ChangeSide getChangeSide(@NotNull FragmentSide side) {
return mySides[side.getIndex()];
}