Schedule frequency in cron format.

Needs to match the following pattern:

(0)\                                                                        # minutes ~ 0
(\*|([0-9]|1[0-9]|2[0-3])|\*)\                                              # hours ~ * OR 0-23
(\*|([1-9]|[1-2][0-9]?|3[0-1]))?(,(\*|([1-9]|[1-2][0-9]?|3[0-1]))){0,30}\   # day of month ~ * OR 1-31
(\*|([1-9]|1[0-2]?))?(,(\*|([1-9]|1[0-2]?))){0,12}\                         # month ~ * OR 1-12
(\*|[0-6])(,(\*|[0-6])){0,7}                                                # day of week ~ * OR 0-6
$                                                                           # matches the end of the string

• 0 10 * * 0,1,2,4,5 - At 10:00 on Sunday, Monday, Tuesday, Thursday, and Friday
• 0 10 * * 2 - At 10:00 on Tuesday
• 0 23 * 12 * - At 23:00 in December
• 0 23 1,31 1,2,5,6,7,10,11 1,3 - At 08:00 on day-of-month 1 and 31 and on Monday and Wednesday in January, February, May, June, July, October, and November

Scheduled report view. Should be either 'formatted' or 'details'

Scheduled report format. Should be either 'xlsx', 'csv' or 'json'

Subject of the email