implement a function cache
implement a function cache

szha/mxnet,ptrendx/mxnet,ForkedReposBak/mxnet,tlby/mxnet,mbaijal/incubator-mxnet,ptrendx/mxnet,tlby/mxnet,tlby/mxnet,zhreshold/mxnet,leezu/mxnet,ForkedReposBak/mxnet,eric-haibin-lin/mxnet,ptrendx/mxnet,sxjscience/mxnet,reminisce/mxnet,apache/incubator-mxnet,ptrendx/mxnet,mbaijal/incubator-mxnet,yajiedesign/mxnet,zhreshold/mxnet,leezu/mxnet,zhreshold/mxnet,reminisce/mxnet,szha/mxnet,ptrendx/mxnet,reminisce/mxnet,ForkedReposBak/mxnet,yajiedesign/mxnet,yajiedesign/mxnet,apache/incubator-mxnet,mbaijal/incubator-mxnet,mbaijal/incubator-mxnet,szha/mxnet,larroy/mxnet,szha/mxnet,ptrendx/mxnet,leezu/mxnet,reminisce/mxnet,reminisce/mxnet,DickJC123/mxnet,sxjscience/mxnet,larroy/mxnet,szha/mxnet,tlby/mxnet,ForkedReposBak/mxnet,dmlc/mxnet,zhreshold/mxnet,dmlc/mxnet,szha/mxnet,eric-haibin-lin/mxnet,mbaijal/incubator-mxnet,dmlc/mxnet,szha/mxnet,yajiedesign/mxnet,DickJC123/mxnet,ForkedReposBak/mxnet,dmlc/mxnet,reminisce/mxnet,tlby/mxnet,tlby/mxnet,leezu/mxnet,ptrendx/mxnet,larroy/mxnet,szha/mxnet,dmlc/mxnet,eric-haibin-lin/mxnet,dmlc/mxnet,leezu/mxnet,yajiedesign/mxnet,ptrendx/mxnet,ForkedReposBak/mxnet,zhreshold/mxnet,leezu/mxnet,ForkedReposBak/mxnet,zhreshold/mxnet,apache/incubator-mxnet,DickJC123/mxnet,yajiedesign/mxnet,sxjscience/mxnet,eric-haibin-lin/mxnet,leezu/mxnet,zhreshold/mxnet,JuliaPackageMirrors/MXNet.jl,reminisce/mxnet,dmlc/mxnet,eric-haibin-lin/mxnet,tlby/mxnet,ForkedReposBak/mxnet,ptrendx/mxnet,dmlc/mxnet,reminisce/mxnet,tlby/mxnet,eric-haibin-lin/mxnet,sxjscience/mxnet,sxjscience/mxnet,yajiedesign/mxnet,larroy/mxnet,yajiedesign/mxnet,reminisce/mxnet,larroy/mxnet,yajiedesign/mxnet,dmlc/mxnet,eric-haibin-lin/mxnet,larroy/mxnet,sxjscience/mxnet,mbaijal/incubator-mxnet,mbaijal/incubator-mxnet,larroy/mxnet,ForkedReposBak/mxnet,zhreshold/mxnet,tlby/mxnet,eric-haibin-lin/mxnet,tlby/mxnet,sxjscience/mxnet,sxjscience/mxnet,larroy/mxnet,szha/mxnet,reminisce/mxnet,leezu/mxnet,DickJC123/mxnet,zhreshold/mxnet,ptrendx/mxnet,sxjscience/mxnet,larroy/mxnet,mbaijal/incubator-mxnet,mbaijal/incubator-mxnet,leezu/mxnet,apache/incubator-mxnet,eric-haibin-lin/mxnet