code: def test_merge_no_gap(tiffs, runner):
      """This test fails before 1.3a1 using the original window rounding params (op=floor, pixel_precision-=0)."""
      outputname = str(tiffs.join("merged.tif"))
      inputs = [str(x) for x in tiffs.listdir()]
      inputs.sort()
      result = runner.invoke(
          main_group,
          ["merge"]
          + inputs
          + [
              outputname,
              "--res",
              2 / 123,
              "--nodata",
              0,
              "--bounds",
              "1, 0, 5, 4",
          ],
      )
      assert result.exit_code == 0
  
      with rasterio.open(outputname) as src:
          data = src.read(1)
          assert data[184, 61] != 0
  
imports: from io import StringIO
  import os
  import sys
  import textwrap
  from pathlib import Path
  import affine
  from click.testing import CliRunner
  import numpy
  from pytest import fixture
  import pytest
  import rasterio
  from rasterio.enums import Resampling
  from rasterio.merge import merge, MERGE_METHODS
  from rasterio.rio.main import main_group
  from rasterio.transform import Affine
label_desc: Use image node_id 36 for calling a global function with example usage: test_merge_no_gap(tiffs, runner) without return types