SnglBurstTable.fetch does not return error messages

Created by: andrew-lundgren

Trying to get Omicron triggers using the fetch method of SnglBurstTable, I found that no error message is returned if the channel is not analyzed by Omicron (or if the channel name is wrong). Also no error message is given if the name of the ETG is wrong, and the help message doesn't list the possible ETGs, or specify formatting (e.g. omicron vs Omicron).

Examples:

SnglBurstTable.fetch('H1:NOT-A_CHANNEL','omicron',1111230000,1111240000)

SnglBurstTable.fetch('H1:LSC-DARM_IN1_DQ','iota',1111230000,1111240000)

Both return an empty list.