Function autoFill

autoFill(values, options?): AutoFiller<any>
Returns a list of values that fit the patten provided.
Parameters
- values: any[]
  the values that will be used to determine the pattern for extending
- Optional options: AutoFillOptions
  see
Returns AutoFiller<any>
Auto Fill Options
If a positive value is used this will will show forecasted points after the set provided. If a negative value is use this will forecast before.

Note - This will return null if the values are : null, empty, or an array with null values.