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:
| No. in series | Title | Directed by | Written by | U.S. viewers (millions) | Original U.S. air date | Prod. code |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | "Crazy Ten Minute Sale" | Fred Savage | Todd J. Greenwald | 5.9 | October12,2007 | 102.0 |
| 2.0 | "First Kiss" | Joe Regalbuto | Vince Cheung & Ben Montanio | 4.8 | October19,2007 | 104.0 |
| 3.0 | "I Almost Drowned in a Chocolate Fountain" | Joe Regalbuto | Gigi McCreery & Perry Rein | 3.7 | October26,2007 | 105.0 |
| 4.0 | "New Employee" | Bob Berlinger | Peter Murrieta | N/A | November2,2007 | 107.0 |
| 5.0 | "Disenchanted Evening" | Mark Cendrowski | Jack Sanderson | 4.6 | November9,2007 | 114.0 |
| 6.0 | "You Can't Always Get What You Carpet" | Fred Savage | Peter Murrieta | 4.0 | November10,2007 | 101.0 |
| 7.0 | "Alex's Choice" | Bob Berlinger | Matt Goldman | N/A | November16,2007 | 109.0 |
| 8.0 | "Curb Your Dragon" | Bob Berlinger | Gigi McCreery & Perry Rein | N/A | November30,2007 | 108.0 |
| 9.0 | "Movies" | Mark Cendrowski | Justin Varava | N/A | December14,2007 | 113.0 |
| 10.0 | "Pop Me and We Both Go Down" | Bob Berlinger | Vince Cheung & Ben Montanio | N/A | January6,2008 | 103.0 |
| 11.0 | "Potion Commotion" | Bob Berlinger | Todd J. Greenwald | N/A | February10,2008 | 110.0 |
| 12.0 | "Justin's Little Sister" | Andrew Tsao | Eve Weston | N/A | March9,2008 | 117.0 |
| 13.0 | "Wizard School"(Part 1) | Mark Cendrowski | Vince Cheung & Ben Montanio | 3.7 | April6,2008 | 111.0 |
| 14.0 | "Wizard School"(Part 2) | Mark Cendrowski | Gigi McCreery & Perry Rein | 3.7 | April6,2008 | 112.0 |
| 15.0 | "The Supernatural" | Mark Cendrowski | Matt Goldman | N/A | May18,2008 | 115.0 |
| 16.0 | "Alex in the Middle" | Bob Berlinger | Matt Goldman | N/A | June15,2008 | 106.0 |
| 17.0 | "Report Card" | Andrew Tsao | Gigi McCreery, Perry Rein & Peter Murrieta | N/A | June29,2008 | 118.0 |
| 18.0 | "Credit Check" | Fred Savage | Todd J. Greenwald | N/A | July6,2008 | 121.0 |
| 19.0 | "Alex's Spring Fling" | Victor Gonzalez | Matt Goldman | N/A | July20,2008 | 119.0 |
| 20.0 | "Quinceañera" | Victor Gonzalez | Gigi McCreery & Perry Rein | 3.7 | August10,2008 | 116.0 |
Question:
How many episodes did Eve Weston write?
Answer:
1.0