/// <summary>
/// Retrieves a relationship between two digital twins.
/// Status codes:
/// 200 (OK): Success.
/// 404 (Not Found): There is either no digital twin or relationship with the
/// provided id.
/// </summary>
/// <param name='operations'>
/// The operations group for this extension method.
/// </param>
/// <param name='id'>
/// The id of the digital twin. The id is unique within the service and case
/// sensitive.
/// </param>
/// <param name='relationshipId'>
/// The id of the relationship. The id is unique within the digital twin and
/// case sensitive.
/// </param>
public static object GetRelationshipById(this IDigitalTwinsOperations operations, string id, string relationshipId)
{
return(operations.GetRelationshipByIdAsync(id, relationshipId).GetAwaiter().GetResult());
}