code: def __init__(self):
      super().__init__("SymbolicExpression")
      self._register_flows()
  
file_path: hls4ml/hls4ml/backends/symbolic/symbolic_backend.py
imports: import os
  import sys
  from hls4ml.backends import FPGABackend
  from hls4ml.model.flow import register_flow
  from hls4ml.report import parse_vivado_report
label_desc: Use image node_id 1 to create a new SymbolicExpressionBackend object from inherited base classes: FPGABackend with example: obj = SymbolicExpressionBackend()