code: def _atan2(result, arg1, arg2):
      return elementwise.get_float_binary_func_kernel(
          result.context, "atan2", arg1.dtype, arg2.dtype, result.dtype
      )
  
imports: import pyopencl.array
  import pyopencl.elementwise
  from pyopencl.array import _get_common_dtype
  import numpy
label_desc: Use image node_id 2 for calling a global function with example usage: _atan2(result, arg1, arg2) and returns: elementwise