code: def get_type_spec_size(ty):
      
      m = type_tag_str_re.match(ty)
      if m is None:
          raise ValueError('Type specifier %s does not have size' % ty)
      return int(m.group('size'))
docs: Get the width of a "type specifier"
      like I16U
      or F16
      or just 16
      (Yes, this really just takes the int out.  If we must special-case, do it here.
      :param tyspec:
      :return: