code: def format(self, node):
      params = self._default_config_params(node)
      params["n_in"] = node.get_input_variable(node.inputs[0]).shape[0]
      params["n_out"] = 1
      return self.template.format(**params)
  
imports: from pathlib import Path
  import numpy
  import tensorflow
  from tensorflow.python.keras.utils import tf_utils
  from tensorflow.python.ops import math_ops
  import hls4ml
  from hls4ml.converters.keras_to_hls import parse_default_keras_layer
  from hls4ml.model.attributes import ConfigurableAttribute, TypeAttribute
  from hls4ml.model.types import FixedPrecisionType, RoundingMode, SaturationMode
label_desc: Use image node_id 2 for calling the HKLLossConfigTemplate obj's underlying member method code with example usage: obj.format(node) and returns: self