public static async Task <KeyValuePair <TKey, TValue>?> Find <TKey, TValue>
(
[NotNull] this IQueryManager <TKey, TValue> queryManager,
[NotNull] Func <TKey, bool> isKey,
[CanBeNull] CancellationToken cancellationToken = default
)
{
var query = new FindQuery <TKey, TValue>(isKey, cancellationToken);
if (!await queryManager.ExecuteQuery(query).ConfigureAwait(false))
{
return(null);
}
return(new KeyValuePair <TKey, TValue>(query.Key, query.Value));
}
