#NEWLINE# def _read_header( self ) : #NEWLINE# #INDENT# reader = wire . PackedMessageReader ( has_prior_state . shmem ) #NEWLINE# self . agg_class_pickled = reader . string ( ) #NEWLINE# has_prior_state = ( reader . uint8 ( ) != 0 ) #NEWLINE# if has_prior_state : #NEWLINE# #INDENT# self . prior_state = compat . pickle_load ( reader . string ( ) ) #NEWLINE# #UNINDENT# else : #NEWLINE# #INDENT# self . prior_state = None