/// <inheritdoc/>
public async Task <TProjection> ProjectOneAsync <TProjection>(
Expression <Func <TModel, bool> > where,
Expression <Func <TModel, TProjection> > project,
string collectionName = null,
CancellationToken cancellationToken = default(CancellationToken))
{
return(await database.ProjectOneQueryAsync(where, project, collectionName, cancellationToken));
}