#NEWLINE# def SequenceStart( self , event , loader ) : #NEWLINE# #INDENT# 'Start of sequence scope\n\n    Create a new sequence from the builder and then handle in the context\n    of its parent.\n\n    Args:\n      event: SequenceStartEvent generated by loader.\n      loader: Loader that generated event.\n    ' #NEWLINE# self . _HandleAnchor ( event ) #NEWLINE# ( token , parent ) = self . _top #NEWLINE# if ( token == _TOKEN_KEY ) : #NEWLINE# #INDENT# ( token , parent ) = self . _stack [ ( - 2 ) ] #NEWLINE# #UNINDENT# sequence = self . _builder . BuildSequence ( parent ) #NEWLINE# self . _HandleValue ( sequence ) #NEWLINE# self . _Push ( _TOKEN_SEQUENCE , sequence )