def METHOD_NAME(self, context):
    self.inputs.new('SvSolidSocket', 'Solid')
    self.outputs.new('SvVerticesSocket', 'Vertices')
    self.outputs.new('SvVerticesSocket', 'Center')
    self.outputs.new('SvSolidSocket', 'Box')
    for key in ['Min','Max','Size']:
        for axis in ['X', 'Y', 'Z']:
            self.outputs.new('SvStringsSocket', axis+key)
    self.update_sockets(context)