gistfile1.txt

async Task Main()
{
    var apiKey = "Input your Api Key";
    var orgId = "Input Target OrgId";
    var projectId = "Input ProjectId";

    var client = new UnityCloudBuildApi.IO.Swagger.Client.ApiClient("https://build-api.cloud.unity3d.com/api/v1");
    var config = new UnityCloudBuildApi.IO.Swagger.Client.Configuration(client, accessToken: apiKey);
    
    #region Build Api
    
    // Get Build Detail
    var buildApi = new UnityCloudBuildApi.IO.Swagger.Api.BuildsApi(config);
    var build = await buildApi.GetBuildsAsync(orgId, projectId, buildTargets.FirstOrDefault().Buildtargetid);

    // Start Build
    var option = new UnityCloudBuildApi.IO.Swagger.Model.Options4
    {
        Clean = false,
        Delay = 0,
    };
    var startBuild = await buildApi.StartBuildsAsync(orgId, projectId, buildTargets.FirstOrDefault().Buildtargetid, option);
    startBuild.Dump();
    
    // Cancel All Build
    foreach (var item in build.Where(x => x.BuildStatus == "queued"))
    {
        var cancelBuilds = await buildApi.CancelAllBuildsAsync(orgId, projectId, item.Buildtargetid);
    }
    
    // Cancel Specific Builds
    var cancelBuild = await buildApi.CancelBuildAsync(orgId, projectId, buildTargets.FirstOrDefault().Buildtargetid, startBuild.FirstOrDefault().Build.ToString());
    
    #endregion
}