enum UnaryFilterOperation {
    EMPTY
    NOT_EMPTY
}

enum NumericFilterOperator {
    EQUAL
    NOT_EQUAL

    LT
    LTE
    GTE
    GT

    #  applicable for ranges
    IN
    NOT_IN
}

enum TextFilterOperation {
    STARTS_WITH
    NOT_STARTS_WITH
    ENDS_WITH
    NOT_ENDS_WITH
    CONTAINS
    NOT_CONTAINS
    #  applicable for ranges
    IN
    NOT_IN
}

enum ArrayFilterOperation {
    CONTAINS
    NOT_CONTAINS
}

input NumericFilter {
    op : NumericFilterOperator
    val : [String]
}

input NumericArrayFilter {
    op : NumericFilterOperator
    val : [String]
}

input TextFilter {
    op : TextFilterOperation
    val : String
}

input TimeFilter {
    op : NumericFilterOperator
    val : JSON
}

input TextArrayFilter {
    op : TextFilterOperation
    val : String
}