endBefore method
Creates a Query with the specified ending point (exclusive) The ending point is exclusive. If only a value is provided, children with a value less than the specified value will be included in the query. If a key is specified, then children must have a value lesss than or equal to the specified value and a key name less than the specified key.
Implementation
Query endBefore(Object? value, {String? key}) {
return Query._(
_queryDelegate,
_modifiers.end(EndCursorModifier.endBefore(value, key)),
);
}