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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def execute(self, conn, acquisition_era_name,end_date, transaction = False):
 """ for a given block_id """
	
	if not conn:
	    dbsExceptionHandler("dbsException-failed-connect2host", "dbs/dao/Oracle/AcquisitionEra/updateEndDate expects db connection from upper layer.", self.logger.exception)
        binds = { "acquisition_era_name" :acquisition_era_name  , "end_date" : end_date  }
        result = self.dbi.processData(self.sql, binds, conn, transaction)