code: def merge_dicts(l):
      """Convenience function to merge list of dictionaries."""
      merged = {}
      for dict in l:
          merged = merge_two_dicts(merged, dict)
      return merged
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import unicode_literals
  import warnings
  import numpy
  import tensorflow
  from deepchem.nn.copy import Input
  from deepchem.feat.mol_graphs import ConvMol
label_desc: Use image node_id 2 for calling a global function with example usage: merge_dicts(l) and returns: merged