public static IFilterOperator <T> LessThanOrEqual <T, P>(this IQueryFilter <T, P> query, P value) => query.AddFilterCondition(nameof(IQueryInstructions.LessThanOrEqual), value);
public static IFilterOperator <T> GreaterThan <T, P>(this IQueryFilter <T, P> query, P value) => query.AddFilterCondition(nameof(IQueryInstructions.GreaterThan), value);