/// <summary>
/// Triggers a new download of the <see cref="PreReceiveEnvironment"/>'s tarball from the environment's <see cref="PreReceiveEnvironment.ImageUrl"/>.
/// When the download is finished, the newly downloaded tarball will overwrite the existing environment.
/// </summary>
/// <remarks>
/// See the <a href="https://developer.github.com/v3/enterprise-admin/pre_receive_environments/#trigger-a-pre-receive-environment-download">API documentation</a> for more information.
/// </remarks>
/// <param name="environmentId">The id of the pre-receive environment</param>
/// <exception cref="NotFoundException">Thrown when the specified <paramref name="environmentId"/> does not exist.</exception>
/// <exception cref="ApiException">Thrown when a general API error occurs.</exception>
public Task <PreReceiveEnvironmentDownload> TriggerDownload(long environmentId)
{
var endpoint = ApiUrls.AdminPreReceiveEnvironmentDownload(environmentId);
return(ApiConnection.Post <PreReceiveEnvironmentDownload>(endpoint, new object(), AcceptHeaders.PreReceiveEnvironmentsPreview));
}