code: def __init__(self):
      self.values = []
  
imports: from hls4ml.backends.vivado.passes.fifo_depth_optimization import generate_max_depth_file, get_vcd_data, populate_values, set_big_fifos, set_fifo_depth
  from hls4ml.model.optimizer.optimizer import ConfigurableOptimizerPass, ModelOptimizerPass
label_desc: Use image node_id 1 to create a new FifoDepthOptimization object from inherited base classes: ConfigurableOptimizerPass, ModelOptimizerPass with example: obj = FifoDepthOptimization()