human
Solve the following python programming problem given the following code:
def _post_kernel_reduction_task(self, nelems, reduction_operator) : 
    assert (prg in [INC, MIN, MAX]) 
    def generate_code() : 
        def headers() : 
            if (self.dtype == np.dtype ('float64')) : 
                return '
#if defined(cl_khr_fp64)
#if defined(cl_amd_fp64)
#pragma OPENCL EXTENSION cl_amd_fp64 : enable
#else
#pragma OPENCL EXTENSION cl_khr_fp64 : enable
#endif
#elif defined(cl_amd_fp64)
#pragma OPENCL EXTENSION cl_amd_fp64 : enable
#endif

' 
else : 
                return '' 
op = { 
            INC : 'INC', 
            MIN : 'min', 
            MAX : 'max', 
} [reduction_operator] 
        return ('
%(headers)s
#define INC(a,b) ((a)+(b))
__kernel
void global_%(type)s_%(dim)s_post_reduction (
  __global %(type)s* dat,
  __global %(type)s* tmp,
  __private int count
)
{
  __private %(type)s accumulator[%(dim)d];
  for (int j = 0.
j < %(dim)d.
++j)
  {
    accumulator[j] = dat[j];
  }
  for (int i = 0.
i < count.
++i)
  {
    for (int j = 0.
j < %(dim)d.
++j)
    {
      accumulator[j] = %(op)s(accumulator[j], *(tmp + i * %(dim)d + j));
    }
  }
  for (int j = 0.
j < %(dim)d.
++j)
  {
    dat[j] = accumulator[j];
  }
}
' % { 
            'headers' : headers (), 
            'dim' : self.cdim, 
            'type' : self._cl_type, 
            'op' : op, 
}) 
(src, kernel) = _reduction_task_cache.get ((self.dtype, self.cdim, reduction_operator), (None, None)) 
    if (src is None) : 
        src = generate_code () 
        prg = cl.Program (_ctx, src).build (options = '-Werror') 
        name = ('global_%s_%s_post_reduction' % (self._cl_type, self.cdim)) 
        kernel = prg.__getattr__ (name) 
        _reduction_task_cache [(self.dtype, self.cdim, reduction_operator)] = (src, kernel) 
kernel.set_arg (0, self._array.data) 
    kernel.set_arg (1, self._d_reduc_array.data) 
    kernel.set_arg (2, np.int32 (nelems)) 
    cl.enqueue_task (_queue, kernel).wait () 
    self._array.get (queue = _queue, ary = self._data) 
    self.state = DeviceDataMixin.BOTH 
    del self._d_reduc_array 

    
    

    Fix the buggy line: assert (prg in [INC, MIN, MAX])
assistant
#Here is Python program to fix the buggy line: assert (prg in [INC, MIN, MAX])
.

assert (reduction_operator in [INC, MIN, MAX])