Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Series no. | Season no. | Title | Directed by | Written by | Original air date | Production code |
| --- | --- | --- | --- | --- | --- | --- |
| 6.0 | 1.0 | "I See Her Face Everywhere" | Matt Shakman | Rob Corddry | August22,2010 | 201.0 |
| 7.0 | 2.0 | "No One Can Replace Her" | Matt Shakman | Rob Corddry | August29,2010 | 202.0 |
| 8.0 | 3.0 | "I Am Not Afraid of Any Ghost" | Bryan Gordon | Rob Huebel | September5,2010 | 203.0 |
| 9.0 | 4.0 | "Give a Painted Brother a Break" | Rob Schrab | Paul Scheer | September12,2010 | 205.0 |
| 10.0 | 5.0 | "Joke Overload" | John Inwood | Jason Mantzoukas | September19,2010 | 207.0 |
| 11.0 | 6.0 | "End of the Middle" | David Wain | Jonathan Stern | September26,2010 | 206.0 |
| 13.0 | 8.0 | "Hot Enough for You?" | David Wain | Rob Corddry & David Wain | October10,2010 | 208.0 |
| 14.0 | 9.0 | "The Coffee Machine Paid for Itself?" | Bryan Gordon | Ken Marino & Erica Oyama | October17,2010 | 209.0 |
| 16.0 | 11.0 | "You Know No One Can Hear You, Right?" | Ken Marino | Brian Huskey and Rob Corddry | October31,2010 | 211.0 |
Question:
how many people wrote the episode directed by rob schrab?
Answer:
1.0