input: [1] interval [2] integer [3] The number of "units" to return data for - minutes, hours, days, weeks, or months. 1 will return data for the current unit (minute, hour, day, week or month). 2 will return the current and previous units, and so on. [0] 
output: required
options: R e q u i r e d
options: r e q u i r e d
options: o p t i o n a l