code: def validate(identifier):
      '''Validate a source given its identifier'''
      source = actions.validate_source(identifier)
      log.info('Source %s (%s) has been validated', source.slug, str(source.id)f validate(identifier):
      '''Validate a source given its identifier'''
      source = actions.validate_source(identifier)
      log.info('Source %s (%s) has been validated', source.slug, str(source.id))
docs: Validate a source given its identifier