code: def test_bounds_handler_non_json():
      """handle non-JSON bbox"""
      ctx = MockContext()
      retval = bounds_handler(ctx, "bounds", "1.0 0.0 1.0 0.0")
      assert retval == (1.0, 0.0, 1.0, 0.0)
  
imports: import math
  import uuid
  import click
  import pytest
  from rasterio.enums import ColorInterp
  from rasterio.rio.options import bounds_handler, file_in_handler, like_handler, edit_nodata_handler, nodata_handler, _cb_key_val
label_desc: Use image node_id 3 for calling a global function with example usage: test_bounds_handler_non_json() without return types