| caseSensitive : bool; | Indicates if the filter expressions are case sensitive. | 
| fieldA : string; | Field A. | 
| fieldAIndex : int; | The Index of the custom dimension. Required if field is a CUSTOM_DIMENSION. | 
| fieldARequired : bool; | Indicates if field A is required to match. | 
| fieldB : string; | Field B. | 
| fieldBIndex : int; | The Index of the custom dimension. Required if field is a CUSTOM_DIMENSION. | 
| fieldBRequired : bool; | Indicates if field B is required to match. | 
| outputConstructor : string; | Expression used to construct the output value. | 
| outputToField : string; | Output field. | 
| outputToFieldIndex : int; | The Index of the custom dimension. Required if field is a CUSTOM_DIMENSION. | 
| overrideOutputField : bool; | Indicates if the existing value of the output field, if any, should be overridden by the output expression. |