optimize takes keys as well
optimize takes keys as well

hainm/dask,esc/dask,minrk/dask,jayhetee/dask,dask/dask,marianotepper/dask,jcrist/dask,hainm/dask,ContinuumIO/dask,ssanderson/dask,freeman-lab/dask,wiso/dask,PhE/dask,jayhetee/dask,jakirkham/dask,cpcloud/dask,mraspaud/dask,simudream/dask,wiso/dask,blaze/dask,cowlicks/dask,PhE/dask,vikhyat/dask,ContinuumIO/dask,dask/dask,mrocklin/dask,chrisbarber/dask,clarkfitzg/dask,esc/dask,pombredanne/dask,mrocklin/dask,pombredanne/dask,mikegraham/dask,vikhyat/dask,jcrist/dask,simudream/dask,ssanderson/dask,jakirkham/dask,clarkfitzg/dask,blaze/dask,freeman-lab/dask,mraspaud/dask,marianotepper/dask,gameduell/dask,minrk/dask