code: def feedkeys(self, keys, options='', escape_csi=True):
          
          return self.request('nvim_feedkeys', keys, options, escape_csi)
docs: Push `keys` to Nvim user input buffer.
  
          Options can be a string with the following character flags:
          - 'm': Remap keys. This is default.
          - 'n': Do not remap keys.
          - 't': Handle keys as if typed; otherwise they are handled as if coming
                 from a mapping. This matters for undo, opening folds, etc.