extend learns chunksize
extend learns chunksize

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