old_contents: import blockNames
  
  class CLUSTERING_TYPES:
      contacts, contactMap = range(2)
  
  CLUSTERING_TYPE_TO_STRING_DICTIONARY = {
      CLUSTERING_TYPES.contacts : blockNames.ClusteringTypes.contacts
      CLUSTERING_TYPES.contactMap : blockNames.ClusteringTypes.contactMap
  }
  
new_contents: import blockNames
  
  class CLUSTERING_TYPES:
      contacts, contactMap = range(2)
  
  CLUSTERING_TYPE_TO_STRING_DICTIONARY = {
      CLUSTERING_TYPES.contacts : blockNames.ClusteringTypes.contacts,
      CLUSTERING_TYPES.contactMap : blockNames.ClusteringTypes.contactMap
  }
  
subject: Add missing comma