human
Solve the following python programming problem given the following code:
def _emit_post_update_statements(base_mapper, uowtransaction, cached_connections, mapper, table, update) : 
    'Emit UPDATE statements corresponding to value lists collected
    by _collect_post_update_commands().' 
    def update_stmt() : 
        clause = sql.and_ () 
        for col in mapper._pks_by_table [table] : 
            clause.clauses.append ((col == sql.bindparam (col._label, type_ = col.type))) 
return table.update (clause) 
statement = base_mapper._memo (('post_update', table), update_stmt) 
    for (key, grouper) in groupby (update, (lambda rec : (rec [1], set (rec [0])))) : 
        connection = key [0] 
        multiparams = [params for (params, conn) in grouper] 
        cached_connections [connection].execute (statement, base_mapper) 

    
    

    Fix the buggy line: cached_connections [connection].execute (statement, base_mapper)
assistant
#Here is Python program to fix the buggy line: cached_connections [connection].

cached_connections [connection].execute (statement, multiparams)