code: def time_nested(self, n):
      np.block(
          [
              [
                  np.block([[self.one], [self.three], [self.four]]),
                  self.two,
              ],
              [self.five, self.six],
              [self.zero],
          ]
      )
  
imports: from .common import Benchmark
  import numpy
label_desc: Use image node_id 5 for calling the Block obj's underlying member method code with example usage: obj.time_nested(n) without return types