selection

const (
	DoesNotExist        Operator = "!"
	Equals              Operator = "="
	DoubleEquals        Operator = "=="
	Contains            Operator = "contains"
	In                  Operator = "in"
	NotEquals           Operator = "!="
	NotContains         Operator = "notcontains"
	NotIn               Operator = "notin"
	Exists              Operator = "exists"
	GreaterThan         Operator = "gt"
	GreaterThanOrEquals Operator = "gte"
	LessThan            Operator = "lt"
	LessThanOrEquals    Operator = "lte"
)