code: def repulsion(d):
      """Computes repulsion interaction term."""
      return tf.where(d < 0, d**2, tf.zeros_like(d))
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import unicode_literals
  import warnings
  import numpy
  import tensorflow
  from deepchem.models import Model
  from deepchem.nn import model_ops
  import deepchem.utils.rdkit_util
label_desc: Use image node_id 10 for calling a global function with example usage: repulsion(d) and returns: tf