code: def edit(filename, identifier, data):
      
      # Get current bibtex
      with open(filename, 'r') as fh:
          bibtex = bibtexparser.load(fh)
  
      # Update it
      # TODO: Not working
      bibtex.entries_dict[identifier] = data.entries[0]
  
      # Write the resulting BibTeX
      write(filename, bibtex)
docs: Update an entry in a BibTeX file.
  
      :param filename: The name of the BibTeX file to edit.
      :param identifier: The id of the entry to update, in the BibTeX file.
      :param data: A dict associating fields and updated values. Fields present \
              in the BibTeX file but not in this dict will be kept as is.