code: def create(gandi, name, value=None, filename=None):
      
      if not value and not filename:
          raise UsageError('You must set value OR filename.')
  
      if value and filename:
          raise UsageError('You must not set value AND filename.')
  
      if filename:
          value = filename.read()
  
      ret = gandi.sshkey.create(name, value)
  
      output_keys = ['id', 'name', 'fingerprint']
      return output_sshkey(gandi, ret, output_keys)
docs: Create a new SSH key.