code: def test_memoryfile_incr_init(data_coutwildrnp_json):
      """In-memory GeoJSON file written in 2 parts can be read"""
      with MemoryFile() as memfile:
          memfile.write(data_coutwildrnp_json[:1000])
          memfile.write(data_coutwildrnp_json[1000:])
          with memfile.open() as collection:
              assert len(collection) == 67
  
imports: import os
  from io import BytesIO
  import pytest
  import fiona
  from fiona import supported_drivers
  from fiona.drvsupport import _driver_supports_mode
  from fiona.errors import DriverError
  from fiona.io import MemoryFile, ZipMemoryFile
  from fiona.meta import supports_vsi
  from .conftest import requires_gdal2, requires_gpkg
label_desc: Use image node_id 6 for calling a global function with example usage: test_memoryfile_incr_init(data_coutwildrnp_json) without return types