code: def exists(name, tags=None, region=None, key=None, keyid=None, profile=None):
      '''
      Check to see if an RDS exists.
  
      CLI example::
  
          salt myminion boto_rds.exists myrds region=us-east-1
      '''
      conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
  
      try:
          rds = conn.describe_db_instances(DBInstanceIdentifier=name)
          return {'exists': bool(rds)}
      except ClientError as e:
          return {'error': __utils__['boto3.get_error'](e)f exists(name, tags=None, region=None, key=None, keyid=None, profile=None):
      '''
      Check to see if an RDS exists.
  
      CLI example::
  
          salt myminion boto_rds.exists myrds region=us-east-1
      '''
      conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
  
      try:
          rds = conn.describe_db_instances(DBInstanceIdentifier=name)
          return {'exists': bool(rds)}
      except ClientError as e:
          return {'error': __utils__['boto3.get_error'](e)}
docs: Check to see if an RDS exists.
  
      CLI example::
  
          salt myminion boto_rds.exists myrds region=us-east-1