docstr: Assemble an array from a distributed array of object refs.
docstr_tok: ["Assemble","an","array","from","a","distributed","array","of","object","refs","."]
code: def assemble(self):
      """Assemble an array from a distributed array of object refs."""
      first_block = ray.get(self.object_refs[(0,) * self.ndim])
      dtype = first_block.dtype
      result = np.zeros(self.shape, dtype=dtype)
      for index in np.ndindex(*self.num_blocks):
          lower = DistArray.compute_block_lower(index, self.shape)
          upper = DistArray.compute_block_upper(index, self.shape)
          value = ray.get(self.object_refs[index])
          result[
              tuple(slice(l, u) for (l, u) in zip(lower, upper))
          ] = value
      return result
  
imports: import numpy
  import ray
  import ray.experimental.array.remote
label_desc: Use image node_id 6 for calling the DistArray obj's underlying member method code with example usage: obj.assemble() and returns: result