#NEWLINE# def __init__( self , store , channel , identifier ) : #NEWLINE# #INDENT# self . store = store #NEWLINE# self . channel = channel . replace ( '/' , '_' ) #NEWLINE# assert valid_path ( self . channel ) , 'Invalid channel' #NEWLINE# self . identifier = identifier #NEWLINE# assert valid_path ( self . identifier ) , 'Invalid identifier' #NEWLINE# self . _node_path = os . path . join ( self . store . gref_path ( ) , self . channel , channel . identifier )