Method begin

tensorflow/core/util/sparse/group_iterator.h:89–89

  class IteratorStep;

  IteratorStep begin() { return IteratorStep(this, 0); }
  IteratorStep at(int64 loc) {
    CHECK(loc >= 0 && loc <= ix_.dim_size(0))
        << "loc provided must lie between 0 and " << ix_.dim_size(0);