class_docstr: Validates the precision of user-defined LUTs is adequate
code: def match(self, node):
      return (
          isinstance(node, SymbolicExpression)
          and len(node.get_attr("lut_functions", [])) > 0
      )
  
imports: from hls4ml.model.layers import SymbolicExpression
  from hls4ml.model.optimizer import ConfigurableOptimizerPass
label_desc: Use image node_id 2 for calling the ValidateUserLookupTable obj's underlying member method code with example usage: obj.match(node) and returns: unknown