Address review comment: Document that type is part of interface.
Address review comment: Document that type is part of interface.

w4ngyi/flocker,lukemarsden/flocker,wallnerryan/flocker-profiles,1d4Nf6/flocker,LaynePeng/flocker,lukemarsden/flocker,1d4Nf6/flocker,mbrukman/flocker,adamtheturtle/flocker,moypray/flocker,moypray/flocker,agonzalezro/flocker,jml/flocker,1d4Nf6/flocker,AndyHuu/flocker,agonzalezro/flocker,achanda/flocker,wallnerryan/flocker-profiles,Azulinho/flocker,achanda/flocker,runcom/flocker,runcom/flocker,wallnerryan/flocker-profiles,w4ngyi/flocker,Azulinho/flocker,mbrukman/flocker,w4ngyi/flocker,adamtheturtle/flocker,agonzalezro/flocker,LaynePeng/flocker,AndyHuu/flocker,jml/flocker,adamtheturtle/flocker,lukemarsden/flocker,Azulinho/flocker,hackday-profilers/flocker,AndyHuu/flocker,achanda/flocker,hackday-profilers/flocker,hackday-profilers/flocker,runcom/flocker,jml/flocker,LaynePeng/flocker,moypray/flocker,mbrukman/flocker