code: def run_length_decode(in_array):
      
      switch=False
      out_array=[]
      for item in in_array:
          if switch==False:
              this_item = item
              switch=True
          else:
              switch=False
              out_array.extend([this_item]*int(item))
      return out_array
docs: A function to run length decode an int array.
      :param in_array: the input array of integers
      :return the decoded array