<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def init_mpraw(mpv, npv):
 """Set a global variable as a multiprocessing RawArray in shared memory with a numpy array wrapper and initialise its value. Parameters mpv : string Name of global variable to set npv : ndarray Numpy array to use as initialiser for global variable value """


    globals()[mpv] = mpraw_as_np(npv.shape, npv.dtype)
    globals()[mpv][:] = npv