Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
When arthur heinemann is the writer who is the director?

### Inputs:
table_name: table, columns: ['No. in series', 'Title', 'Directed By', 'Written By', 'air date', 'Production code']

### Response:
SELECT Directed By FROM table WHERE Written By = Arthur Heinemann