code: def parameter_blocks(self):
          '''Compute the size (in 512B blocks) of the parameter section.'''
          bytes = 4. + sum(g.binary_size() for g in self.groups.values())
          return int(np.ceil(bytes / 512)f parameter_blocks(self):
          '''Compute the size (in 512B blocks) of the parameter section.'''
          bytes = 4. + sum(g.binary_size() for g in self.groups.values())
          return int(np.ceil(bytes / 512))
docs: Compute the size (in 512B blocks) of the parameter section.