val sdk = FastPixUploadSdk.Builder(this)
    .setFile(file)
    .setSignedUrl(_signedUrl.orEmpty())
    .setChunkSize(16 * 1024 * 1024) // Chunk Size in Byte
    .setMaxRetries(2000) // In Milliseconds
    .callback(new object : FastPixUploadCallbacks {
        override fun onProgressUpdate(progress: Double) {
          // Called periodically to report upload progress (0.0 - 100.0)
          // Example: update a progress bar
        }
        override fun onPauseUploading() {
          // Called when the upload completes successfully
          // timiMillis indicates how long the upload took
        }
        override fun onResumeUploading() {
          // Called when the upload resumes after being paused
          // Use this to resume UI indicators or timers
        }
        override fun onAbort() {
          // Called when the upload is manually aborted
          // Use this to clean up UI or notify the user
        }
        override fun onUploadInit() {
          // Called when the upload process is initialized
          // Use this to show an initial loading state or setup UI
        }
        override fun onChunkHanlded(
            totalChunks: Int,
            fileSizeInBytes: Long,
            currentChunk: Int,
            currentChunkSizeInBytes: Long
        ) {
          // Called after a chunk is successfully uploaded
          // totalChunks: total number of chunks to upload
          // filSizeInBytes: total file size
          // currentChunk: index of the currently uploaded chunk
          // currentChunkSizeInBytes: size of the uploaded chunk
        }
        override fun onSuccess(timiMillis: Long) {
            // Time to complete the Upload Process
        }
        override fun onChunkUploadingFailed(
            failedChunkRetries: Int,
            chunkCount: Int,
            chunkSize: Int
        ) {
          // Called when a chunk fails to upload after retry attempts
          // failedChunkRetries: number of retries attempted for the chunk
          // chunkCount: index of the failed chunk
          // chunkSize: size of the failed chunk
        }
        override fun onError(error: String, timeMillis: Long) {
          // Called when the upload is paused
          // Use this to reflect paused state in UI
        }
        override fun onNetworkStateChanged(isOnline: Boolean) {
          // Called when the network connectivity changes
          // isOnline indicates whether the device is currently online or offline
        }
    })
    .setRetryDelay(2000) // Retry Delay  
    .build()
// Starts the Uploading Process
sdk.startUpload()

retryDelayMs = 2000  // 2 seconds between retry attempts