https://devstreaming-cdn.apple.com/videos/wwdc/2017/102xyar2647hak3e/102/102_hd_platforms_state_of_the_union.mp4?dl=1
    out=[2017] [Session 102] Platforms State of the Union.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/110agzs7njnnjtee/110/110_hd_convenience_for_you_is_independence_for_me.mp4?dl=1
    out=[2017] [Session 110] Convenience for You is Independence for Me.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/201fz90p4yq582o/201/201_hd_whats_new_in_cocoa_touch.mp4?dl=1
    out=[2017] [Session 201] What's New in Cocoa Touch.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/202ximbb9e2dq222/202/202_hd_advances_in_tvmlkit.mp4?dl=1
    out=[2017] [Session 202] Advances in TVMLKit.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/203atfalwz52js4444/203/203_hd_introducing_drag_and_drop.mp4?dl=1
    out=[2017] [Session 203] Introducing Drag and Drop.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/204kty9amomlmk222/204/204_hd_updating_your_app_for_ios_11.mp4?dl=1
    out=[2017] [Session 204] Updating Your App for iOS 11.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/205f4nvkct31tv/205/205_hd_whats_new_in_watchos.mp4?dl=1
    out=[2017] [Session 205] What's New in watchOS.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/206efq12yy8kg/206/206_hd_introducing_password_autofill_for_apps.mp4?dl=1
    out=[2017] [Session 206] Introducing Password AutoFill for Apps.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/207mg6u1b7mfd02n/207/207_hd_whats_new_in_cocoa.mp4?dl=1
    out=[2017] [Session 207] What's New in Cocoa.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/208tpmh7cwo17vk/208/208_hd_natural_language_processing_and_your_apps.mp4?dl=1
    out=[2017] [Session 208] Natural Language Processing and your Apps.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/209dzcjsnhy5ju/209/209_hd_whats_new_in_tvos.mp4?dl=1
    out=[2017] [Session 209] What's New in tvOS.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/210ihxlzd3oovy9h/210/210_hd_whats_new_in_core_data.mp4?dl=1
    out=[2017] [Session 210] What's New in Core Data.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/211r8euwwl9x4/211/211_hd_touch_bar_fundamentals.mp4?dl=1
    out=[2017] [Session 211] Touch Bar Fundamentals.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/212vz78e2gzl2/212/212_hd_whats_new_in_foundation.mp4?dl=1
    out=[2017] [Session 212] What's New in Foundation.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/213zpcyn0q9if99c/213/213_hd_mastering_drag_and_drop.mp4?dl=1
    out=[2017] [Session 213] Mastering Drag and Drop.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/214bugobsy7xw94v/214/214_hd_whats_new_in_sirikit.mp4?dl=1
    out=[2017] [Session 214] What's New in SiriKit.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/215avg3cuo2bu/215/215_hd_whats_new_in_accessibility.mp4?dl=1
    out=[2017] [Session 215] What's New in Accessibility.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/216p00nq8fwzed/216/216_hd_the_life_of_a_watchos_app.mp4?dl=1
    out=[2017] [Session 216] The Life of a watchOS App.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/217m6q9g9wx6olr/217/217_hd_media_and_gaming_accessibility.mp4?dl=1
    out=[2017] [Session 217] Media and Gaming Accessibility.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/218p1ql8x8ga34/218/218_hd_choosing_the_right_cocoa_container_view.mp4?dl=1
    out=[2017] [Session 218] Choosing the Right Cocoa Container View.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/219okz4tp7uyw5n/219/219_hd_modern_user_interaction_on_ios.mp4?dl=1
    out=[2017] [Session 219] Modern User Interaction on iOS.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/220ugyk0ejmva/220/220_hd_customized_loading_in_wkwebview.mp4?dl=1
    out=[2017] [Session 220] Customized Loading in WKWebView.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/221izy8b17y2dtiy/221/221_hd_whats_new_in_health.mp4?dl=1
    out=[2017] [Session 221] What's New in Health.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/222ijxk2akkrebmr/222/222_hd_advanced_touch_bar.mp4?dl=1
    out=[2017] [Session 222] Advanced Touch Bar.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/223ehejg7kebf8wl/223/223_hd_drag_and_drop_with_collection_and_table_view.mp4?dl=1
    out=[2017] [Session 223] Drag and Drop with Collection and Table View.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/224sn8vw625k1e86/224/224_hd_focus_interaction_in_tvos_11.mp4?dl=1
    out=[2017] [Session 224] Focus Interaction in tvOS 11.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/225kqn87jg4q699q/225/225_hd_whats_new_in_safari_view_controller.mp4?dl=1
    out=[2017] [Session 225] What's New in Safari View Controller.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/226hm9uasv2xilo/226/226_hd_build_better_apps_with_cloudkit_dashboard.mp4?dl=1
    out=[2017] [Session 226] Build Better Apps with CloudKit Dashboard.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/227jjbmtoqrzj00/227/227_hd_data_delivery_with_drag_and_drop.mp4?dl=1
    out=[2017] [Session 227] Data Delivery with Drag and Drop.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/228b3suet75j9rt2n/228/228_hd_making_great_sirikit_experiences.mp4?dl=1
    out=[2017] [Session 228] Making Great SiriKit Experiences.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/229pmdntyv1wd/229/229_hd_building_great_documentbased_apps_in_ios_11.mp4?dl=1
    out=[2017] [Session 229] Building Great Document-based Apps in iOS 11.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/230lc4n1loob9/230/230_hd_advanced_animations_with_uikit.mp4?dl=1
    out=[2017] [Session 230] Advanced Animations with UIKit.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/231wmbuvx0t3sci6ua/231/231_hd_whats_new_in_core_spotlight_for_ios_and_macos.mp4?dl=1
    out=[2017] [Session 231] What's New in Core Spotlight for iOS and macOS.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/232avezuj9uzy0hh5n/232/232_hd_whats_new_in_carekit_and_researchkit.mp4?dl=1
    out=[2017] [Session 232] What's New in CareKit and ResearchKit.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/234otwtryzhno89esd/234/234_hd_whats_new_in_imessage_apps.mp4?dl=1
    out=[2017] [Session 234] What's New in iMessage Apps.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/235q83l07a9gtq2rhh/235/235_hd_building_visually_rich_user_experiences.mp4?dl=1
    out=[2017] [Session 235] Building Visually Rich User Experiences.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/236m8wqo6pbcjnqm2k/236/236_hd_cocoa_development_tips.mp4?dl=1
    out=[2017] [Session 236] Cocoa Development Tips.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/237oyga54hirqaeiwg/237/237_hd_whats_new_in_mapkit.mp4?dl=1
    out=[2017] [Session 237] What's New in MapKit.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/238a3uic99uf9c6iw3/238/238_hd_writing_energy_efficient_apps.mp4?dl=1
    out=[2017] [Session 238] Writing Energy Efficient Apps.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/239jf31ojfabtst2rm/239/239_hd_connecting_carekit_to_the_cloud.mp4?dl=1
    out=[2017] [Session 239] Connecting CareKit to the Cloud.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/240nyzp1eit4xt84w4/240/240_hd_introducing_business_chat.mp4?dl=1
    out=[2017] [Session 240] Introducing Business Chat.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/241iivj8rn2fo3ft0r/241/241_hd_introducing_pdfkit_on_ios.mp4?dl=1
    out=[2017] [Session 241] Introducing PDFKit on iOS.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/242vuobd1jbmqgaxcq/242/242_hd_the_keys_to_a_better_text_input_experience.mp4?dl=1
    out=[2017] [Session 242] The Keys to a Better Text Input Experience.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/243eh39ob5y0z0ktg5/243/243_hd_file_provider_enhancements.mp4?dl=1
    out=[2017] [Session 243] File Provider Enhancements.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/244ogyk0iqlop3ecdr/244/244_hd_efficient_interactions_with_frameworks.mp4?dl=1
    out=[2017] [Session 244] Efficient Interactions with Frameworks.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/245ti8oovkx1hl5005/245/245_hd_building_apps_with_dynamic_type.mp4?dl=1
    out=[2017] [Session 245] Building Apps with Dynamic Type.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/246oh3k8zgxi921jxq/246/246_hd_deep_linking_on_tvos.mp4?dl=1
    out=[2017] [Session 246] Deep Linking on tvOS.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/247yvk4zop0czpm7s6/247/247_hd_extend_your_apps_presence_with_sharing.mp4?dl=1
    out=[2017] [Session 247] Extend Your App's Presence With Sharing.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/248l3bagtus6l8jwxh/248/248_hd_localization_best_practices_on_tvos.mp4?dl=1
    out=[2017] [Session 248] Localization Best Practices on tvOS.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/249alewpia5158ow5k/249/249_hd_filtering_unwanted_messages_with_identity_lookup.mp4?dl=1
    out=[2017] [Session 249] Filtering Unwanted Messages with Identity Lookup.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/250lnw83hnjfutowrg/250/250_hd_extend_your_apps_presence_with_deep_linking.mp4?dl=1
    out=[2017] [Session 250] Extend Your App’s Presence with Deep Linking.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/251txgutnwpkc4740f/251/251_hd_now_playing_and_remote_commands_on_tvos.mp4?dl=1
    out=[2017] [Session 251] Now Playing and Remote Commands on tvOS.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/301nfvhdbpifiun/301/301_hd_introducing_the_new_app_store.mp4?dl=1
    out=[2017] [Session 301] Introducing the New App Store.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/302gfkat3b267/302/302_hd_whats_new_in_itunes_connect.mp4?dl=1
    out=[2017] [Session 302] What's New in iTunes Connect.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/303f0u5froddl13/303/303_hd_whats_new_in_storekit.mp4?dl=1
    out=[2017] [Session 303] What's New in StoreKit.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/304jud27ysms3xno/304/304_hd_whats_new_in_device_configuration_deployment_and_management.mp4?dl=1
    out=[2017] [Session 304] What's New in Device Configuration, Deployment, and Management.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/305k3ed4sd37at/305/305_hd_advanced_storekit.mp4?dl=1
    out=[2017] [Session 305] Advanced StoreKit.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/401ugfluogxen0222/401/401_hd_localizing_with_xcode_9.mp4?dl=1
    out=[2017] [Session 401] Localizing with Xcode 9.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/402ynph39nk5sn4222/402/402_hd_whats_new_in_swift.mp4?dl=1
    out=[2017] [Session 402] What's New in Swift.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/403yv29uwyamwsi222/403/403_hd_whats_new_in_signing_for_xcode_and_xcode_server.mp4?dl=1
    out=[2017] [Session 403] What's New in Signing for Xcode and Xcode Server.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/404z7uj3xincdb0/404/404_hd_debugging_with_xcode_9.mp4?dl=1
    out=[2017] [Session 404] Debugging with Xcode 9.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/405jj1fb4x5ol/405/405_hd_github_and_the_new_source_control_workflows_in_xcode_9.mp4?dl=1
    out=[2017] [Session 405] GitHub and the New Source Control Workflows in Xcode 9.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/406hi7pbvl7ez0j/406/406_hd_finding_bugs_using_xcode_runtime_tools.mp4?dl=1
    out=[2017] [Session 406] Finding Bugs Using Xcode Runtime Tools.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/407kc2s6vvx95/407/407_hd_understanding_undefined_behavior.mp4?dl=1
    out=[2017] [Session 407] Understanding Undefined Behavior.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/408qiszgcawlgvhh/408/408_hd_whats_new_in_swift_playgrounds.mp4?dl=1
    out=[2017] [Session 408] What’s New in Swift Playgrounds.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/409cjm7echviyzl/409/409_hd_whats_new_in_testing.mp4?dl=1
    out=[2017] [Session 409] What's New in Testing.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/410ozg0v8cc7h/410/410_hd_localizing_content_for_swift_playgrounds.mp4?dl=1
    out=[2017] [Session 410] Localizing Content for Swift Playgrounds.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/411a7o9phe4uekm/411/411_hd_whats_new_in_llvm.mp4?dl=1
    out=[2017] [Session 411] What's New in LLVM.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/412icy0vh6ays/412/412_hd_auto_layout_techniques_in_interface_builder.mp4?dl=1
    out=[2017] [Session 412] Auto Layout Techniques in Interface Builder.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/413fmx92zo14voet8/413/413_hd_app_startup_time_past_present_and_future.mp4?dl=1
    out=[2017] [Session 413] App Startup Time - Past, Present, and Future.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/414qr3121b1oieq/414/414_hd_engineering_for_testability.mp4?dl=1
    out=[2017] [Session 414] Engineering for Testability.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/416mytru0s49ohk/416/416_hd_teaching_with_swift_playgrounds.mp4?dl=1
    out=[2017] [Session 416] Teaching with Swift Playgrounds.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/501fo36iwi2moz2l222/501/501_hd_whats_new_in_audio.mp4?dl=1
    out=[2017] [Session 501] What's New in Audio.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/502cdkomuy9vbj4222/502/502_hd_introducing_musickit.mp4?dl=1
    out=[2017] [Session 502] Introducing MusicKit.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/503i6plfvfi7o3222/503/503_hd_introducing_heif_and_hevc.mp4?dl=1
    out=[2017] [Session 503] Introducing HEIF and HEVC.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/504op4c3001w2f222/504/504_hd_advances_in_http_live_streaming.mp4?dl=1
    out=[2017] [Session 504] Advances in HTTP Live Streaming.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/505e36yrkhhfv/505/505_hd_whats_new_in_photos_apis.mp4?dl=1
    out=[2017] [Session 505] What's New in Photos APIs.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/506jgz9rblchh/506/506_hd_vision_framework_building_on_core_ml.mp4?dl=1
    out=[2017] [Session 506] Vision Framework - Building on Core ML.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/507koao27wdpt/507/507_hd_capturing_depth_in_iphone_photography.mp4?dl=1
    out=[2017] [Session 507] Capturing Depth in iPhone Photography.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/508wdyl5rm2jy9z8/508/508_hd_image_editing_with_depth.mp4?dl=1
    out=[2017] [Session 508] Image Editing with Depth.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/509v96e4gd96rlqyq/509/509_hd_introducing_airplay_2.mp4?dl=1
    out=[2017] [Session 509] Introducing AirPlay 2.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/510lf4jlju5s1/510/510_hd_advances_in_core_image_filters_metal_vision_and_more.mp4?dl=1
    out=[2017] [Session 510] Advances in Core Image - Filters, Metal, Vision, and More.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/511tj33587vdhds/511/511_hd_working_with_heif_and_hevc.mp4?dl=1
    out=[2017] [Session 511] Working with HEIF and HEVC.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/512u8r4crqanrp/512/512_hd_apple_podcasts.mp4?dl=1
    out=[2017] [Session 512] Apple Podcasts.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/513fzgbviu23l/513/513_hd_high_efficiency_image_file_format.mp4?dl=1
    out=[2017] [Session 513] High Efficiency Image File Format.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/514tjrrgnguh4k/514/514_hd_error_handling_best_practices_for_http_live_streaming.mp4?dl=1
    out=[2017] [Session 514] Error Handling Best Practices for HTTP Live Streaming.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/515vy4sl7iu70/515/515_hd_hls_authoring_update.mp4?dl=1
    out=[2017] [Session 515] HLS Authoring Update.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/601nzg4idodih222/601/601_hd_introducing_metal_2.mp4?dl=1
    out=[2017] [Session 601] Introducing Metal 2.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/602pxa6f2vw71ze/602/602_hd_introducing_arkit_augmented_reality_for_ios.mp4?dl=1
    out=[2017] [Session 602] Introducing ARKit - Augmented Reality for iOS.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/603anuihzisyb2a3/603/603_hd_vr_with_metal_2.mp4?dl=1
    out=[2017] [Session 603] VR with Metal 2.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/604r7b4rnjq86/604/604_hd_scenekit_whats_new.mp4?dl=1
    out=[2017] [Session 604] SceneKit - What's New.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/605al19s0mq8dhrdv/605/605_hd_scenekit_in_swift_playgrounds.mp4?dl=1
    out=[2017] [Session 605] SceneKit in Swift Playgrounds.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/606n77zpcxs5ir2/606/606_hd_whats_new_with_screen_recording_and_live_broadcast.mp4?dl=1
    out=[2017] [Session 606] What's New with Screen Recording and Live Broadcast.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/607x3ix6ocbh8/607/607_hd_metal_2_optimization_and_debugging.mp4?dl=1
    out=[2017] [Session 607] Metal 2 Optimization and Debugging.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/608gcvcpr8gs2/608/608_hd_using_metal_2_for_compute.mp4?dl=1
    out=[2017] [Session 608] Using Metal 2 for Compute.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/609ir1t2xrat06i/609/609_hd_going_beyond_2d_with_spritekit.mp4?dl=1
    out=[2017] [Session 609] Going Beyond 2D with SpriteKit.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/610b2hmj0oh62l0/610/610_hd_from_art_to_engine_with_model_io.mp4?dl=1
    out=[2017] [Session 610] From Art to Engine with Model IO.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/701jvytnoey2yc7222/701/701_hd_your_apps_and_evolving_network_security_standards.mp4?dl=1
    out=[2017] [Session 701] Your Apps and Evolving Network Security Standards.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/702lyr2y2j09fro222/702/702_hd_privacy_and_your_apps.mp4?dl=1
    out=[2017] [Session 702] Privacy and Your Apps.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/703muvahj3880222/703/703_hd_introducing_core_ml.mp4?dl=1
    out=[2017] [Session 703] Introducing Core ML.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/704rn4fu5zbv1b8s222/704/704_hd_creating_immersive_apps_with_core_motion.mp4?dl=1
    out=[2017] [Session 704] Creating Immersive Apps with Core Motion.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/705d3czqkho1a6u/705/705_hd_whats_new_in_homekit.mp4?dl=1
    out=[2017] [Session 705] What's New in HomeKit.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/706byvveyendgv5l/706/706_hd_modernizing_grand_central_dispatch_usage.mp4?dl=1
    out=[2017] [Session 706] Modernizing Grand Central Dispatch Usage.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/707h2gkb95cx1l/707/707_hd_advances_in_networking_part_1.mp4?dl=1
    out=[2017] [Session 707] Advances in Networking, Part 1.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/708n9dvm3oden/708/708_hd_best_practices_and_whats_new_in_user_notifications.mp4?dl=1
    out=[2017] [Session 708] Best Practices and What’s New in User Notifications.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/709e7ilkvrjhjr/709/709_hd_advances_in_networking_part_2.mp4?dl=1
    out=[2017] [Session 709] Advances in Networking, Part 2.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/710vxa4hl8hyb72/710/710_hd_core_ml_in_depth.mp4?dl=1
    out=[2017] [Session 710] Core ML in depth.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/711d9xpgp3203tlq/711/711_hd_accelerate_and_sparse_solvers.mp4?dl=1
    out=[2017] [Session 711] Accelerate and Sparse Solvers.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/712jqzhsxoww3zn/712/712_hd_whats_new_in_core_bluetooth.mp4?dl=1
    out=[2017] [Session 712] What's New in Core Bluetooth.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/713tkef4yl0sv3k/713/713_hd_whats_new_in_location_technologies.mp4?dl=1
    out=[2017] [Session 713] What's New in Location Technologies.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/714nzbj3q51ksj/714/714_hd_whats_new_in_apple_pay__wallet.mp4?dl=1
    out=[2017] [Session 714] What's New in Apple Pay & Wallet.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/715gk347h3udl/715/715_hd_whats_new_in_apple_file_system.mp4?dl=1
    out=[2017] [Session 715] What's New in Apple File System.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/716op0un8kq3o4n/716/716_hd_ios_configuration_and_apis_for_kiosk_and_assessment_apps.mp4?dl=1
    out=[2017] [Session 716] iOS Configuration and APIs for Kiosk and Assessment Apps.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/717tmz5rl6c2t2k/717/717_hd_developing_wireless_carplay_systems.mp4?dl=1
    out=[2017] [Session 717] Developing Wireless CarPlay Systems.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/718jes6q3aac0f1a/718/718_hd_introducing_core_nfc.mp4?dl=1
    out=[2017] [Session 718] Introducing Core NFC.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/719d0c0vj588o/719/719_hd_enabling_your_app_for_carplay.mp4?dl=1
    out=[2017] [Session 719] Enabling Your App for CarPlay.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/802i3ngpjoeupj/802/802_hd_essential_design_principles.mp4?dl=1
    out=[2017] [Session 802] Essential Design Principles.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/803gyqggd62btz0/803/803_hd_designing_sound.mp4?dl=1
    out=[2017] [Session 803] Designing Sound.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/804imgsi9d6q5n/804/804_hd_designing_across_platforms.mp4?dl=1
    out=[2017] [Session 804] Designing Across Platforms.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/806ph0c9ysyu1/806/806_hd_design_for_everyone.mp4?dl=1
    out=[2017] [Session 806] Design For Everyone.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/808qnk3ctygo5hd/808/808_hd_planning_a_great_apple_watch_experience.mp4?dl=1
    out=[2017] [Session 808] Planning a Great Apple Watch Experience.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/809dxbck5y8h8e1/809/809_hd_communication_between_designers_and_engineers.mp4?dl=1
    out=[2017] [Session 809] Communication Between Designers and Engineers.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/810rf5oudq18pus/810/810_hd_whats_new_in_ios_11.mp4?dl=1
    out=[2017] [Session 810] What’s New in iOS 11.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/811evqx1dsujdj5222/811/811_hd_design_tips_for_great_games.mp4?dl=1
    out=[2017] [Session 811] Design Tips for Great Games.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/812be3ra1bugc3w/812/812_hd_size_classes_and_core_components.mp4?dl=1
    out=[2017] [Session 812] Size Classes and Core Components.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/813vq78d4cyc3/813/813_hd_writing_great_alerts.mp4?dl=1
    out=[2017] [Session 813] Writing Great Alerts.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/814w4jr9s0yp3cym8222/814/814_hd_designing_for_subscription_success.mp4?dl=1
    out=[2017] [Session 814] Designing for Subscription Success.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/815hn3cbczzv55/815/815_hd_how_to_pick_a_custom_font.mp4?dl=1
    out=[2017] [Session 815] How to Pick a Custom Font.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/816mg1phgy05k3v222/816/816_hd_love_at_first_launch.mp4?dl=1
    out=[2017] [Session 816] Love at First Launch.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/817p12uvpl9vgt/817/817_hd_rich_notifications.mp4?dl=1
    out=[2017] [Session 817] Rich Notifications.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/818xw12wzot6au/818/818_hd_60_second_prototyping.mp4?dl=1
    out=[2017] [Session 818] 60 Second Prototyping.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/819bp5li4iugvy222/819/819_hd_designing_for_a_global_audience.mp4?dl=1
    out=[2017] [Session 819] Designing for a Global Audience.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/820i9qakfac65nsp/820/820_hd_express_yourself.mp4?dl=1
    out=[2017] [Session 820] Express Yourself!.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/821kjtggolzxsv/821/821_hd_get_started_with_display_p3.mp4?dl=1
    out=[2017] [Session 821] Get Started with Display P3.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/822qxyzd1qk9l222/822/822_hd_app_icon_design.mp4?dl=1
    out=[2017] [Session 822] App Icon Design.mp4
https://devstreaming-cdn.apple.com/videos/wwdc/2017/823sgu0b9ofbkip/823/823_hd_designing_glyphs.mp4?dl=1
    out=[2017] [Session 823] Designing Glyphs.mp4