code: def Xs():
      seqs = [
          numpy.zeros((10, 8), dtype="f"),
          numpy.zeros((4, 8), dtype="f"),
      ]
      for x in seqs:
          x[0] = 1
          x[1] = 2  # so max != first
          x[-1] = -1
      return seqs
  
file_path: thinc/thinc/tests/layers/test_reduce.py
imports: import numpy
  import pytest
  from thinc.api import reduce_first, reduce_last, reduce_max, reduce_mean, reduce_sum
  from thinc.types import Ragged
label_desc: Use image node_id 1 for calling a global function with example usage: Xs() and returns: seqs