code: def input_zeros_1d_1ch():
      return np.zeros(shape=(1, 224))
  
imports: import pytest
  from pytest_lazyfixture import lazy_fixture
  from quantus.helpers import utils
  from quantus.functions.perturb_func import *
label_desc: Use image node_id 1 for calling a global function with example usage: input_zeros_1d_1ch() and returns: np