/// <summary>
/// Returns a shared access signature for the blob.
/// </summary>
/// <param name="policy">A <see cref="SharedAccessBlobPolicy"/> object specifying the access policy for the shared access signature.</param>
/// <param name="headers">A <see cref="SharedAccessBlobHeaders"/> object specifying optional header values to set for a blob accessed with this SAS.</param>
/// <param name="groupPolicyIdentifier">A string identifying a stored access policy.</param>
/// <returns>A shared access signature, as a URI query string.</returns>
public string GetSharedAccessSignature(SharedAccessBlobPolicy policy, SharedAccessBlobHeaders headers, string groupPolicyIdentifier)
{
return(this.GetSharedAccessSignature(policy, headers, groupPolicyIdentifier, null, null));
}
