text: from airlfow.hooks.postgres_hook import PostgresHook 
  from airflow.models import BaseOperator 
  from airflow.utils.decorators import apply_defaults
  
  class DataQualityOperator(BaseOperator):
  
      ui_color = '#89DA59'
  
      @apply_defaults
      def __init__(self, 
                  redshift_conn_id="",
                  tables=[], 
                  *args, **kwargs):
          
          super(DataQualityOperator, self).__init__(*args, **kwargs)
          self.redshift_conn_id = redshift_conn_id
          self.tables = tables 
  
      def execute(self, context):
          redshift_hook = PostgresHok(postgres_conn_id = self.redshift_conn_id)
  
          for table in self.tables:
  
              self.log.info(f"Starting data quality validation on table : {table}")
              records = redshift_hook.get_records(f"select count(*) from {table};")
  
              if len(records) < 1 or len(records[0]) < 1 or records[0][0] < 1: 
                  self.log.error(f"Data quality validation FAILED for table : {table}.")
                  raise ValueError(f"Data quality validation FAILED for table : {table}")
              self.log.info(f"Data quality validation PASSED on table : {table}")
          
          self.log.info('DataQualityOperator not implemented yet')