code: def call(self, x, **kwargs):
      return x * self.beta
  
imports: import tensorflow
  from tensorflow.keras.initializers import RandomUniform
  from tensorflow.keras.layers import concatenate, Input, Activation, Add, Conv2D, Lambda
  from tensorflow.keras.models import Model
  from ISR.models.imagemodel import ImageModel
label_desc: Use image node_id 2 for calling the MultiplyBeta obj's underlying member method code with example usage: obj.call(x) and returns: unknown