code: func handleFromLiteralSources(secret *v1.Secret, literalSources []string) error {
  	for _, literalSource := range literalSources {
  		keyName, value, err := util.ParseLiteralSource(literalSource)
  		if err != nil {
  			return err
  		}
  		if err = addKeyFromLiteralToSecret(secret, keyName, []byte(value)); err != nil {
  			return err
  		}
  	}
  	return nil
  }
docs: // handleFromLiteralSources adds the specified literal source information into the provided secret