feat(youtube)!: update the api

#### youtube:v3

The following keys were deleted:
- resources.liveBroadcasts.methods.control.flatPath
- resources.liveBroadcasts.methods.control.httpMethod
- resources.liveBroadcasts.methods.control.id
- resources.liveBroadcasts.methods.control.parameterOrder
- resources.liveBroadcasts.methods.control.parameters.displaySlate.location
- resources.liveBroadcasts.methods.control.parameters.displaySlate.type
- resources.liveBroadcasts.methods.control.parameters.id.location
- resources.liveBroadcasts.methods.control.parameters.id.required
- resources.liveBroadcasts.methods.control.parameters.id.type
- resources.liveBroadcasts.methods.control.parameters.offsetTimeMs.format
- resources.liveBroadcasts.methods.control.parameters.offsetTimeMs.location
- resources.liveBroadcasts.methods.control.parameters.offsetTimeMs.type
- resources.liveBroadcasts.methods.control.parameters.onBehalfOfContentOwner.location
- resources.liveBroadcasts.methods.control.parameters.onBehalfOfContentOwner.type
- resources.liveBroadcasts.methods.control.parameters.onBehalfOfContentOwnerChannel.location
- resources.liveBroadcasts.methods.control.parameters.onBehalfOfContentOwnerChannel.type
- resources.liveBroadcasts.methods.control.parameters.part.location
- resources.liveBroadcasts.methods.control.parameters.part.repeated
- resources.liveBroadcasts.methods.control.parameters.part.required
- resources.liveBroadcasts.methods.control.parameters.part.type
- resources.liveBroadcasts.methods.control.parameters.walltime.format
- resources.liveBroadcasts.methods.control.parameters.walltime.location
- resources.liveBroadcasts.methods.control.parameters.walltime.type
- resources.liveBroadcasts.methods.control.path
- resources.liveBroadcasts.methods.control.response.$ref
- resources.liveBroadcasts.methods.control.scopes
- resources.sponsors.methods.list.flatPath
- resources.sponsors.methods.list.httpMethod
- resources.sponsors.methods.list.id
- resources.sponsors.methods.list.parameterOrder
- resources.sponsors.methods.list.parameters.filter.default
- resources.sponsors.methods.list.parameters.filter.location
- resources.sponsors.methods.list.parameters.filter.type
- resources.sponsors.methods.list.parameters.maxResults.default
- resources.sponsors.methods.list.parameters.maxResults.format
- resources.sponsors.methods.list.parameters.maxResults.location
- resources.sponsors.methods.list.parameters.maxResults.type
- resources.sponsors.methods.list.parameters.pageToken.location
- resources.sponsors.methods.list.parameters.pageToken.type
- resources.sponsors.methods.list.parameters.part.location
- resources.sponsors.methods.list.parameters.part.repeated
- resources.sponsors.methods.list.parameters.part.required
- resources.sponsors.methods.list.parameters.part.type
- resources.sponsors.methods.list.path
- resources.sponsors.methods.list.response.$ref
- resources.sponsors.methods.list.scopes
- schemas.Sponsor.id
- schemas.Sponsor.properties.kind.default
- schemas.Sponsor.properties.kind.type
- schemas.Sponsor.properties.snippet.$ref
- schemas.Sponsor.type
- schemas.SponsorListResponse.id
- schemas.SponsorListResponse.properties.eventId.type
- schemas.SponsorListResponse.properties.items.items.$ref
- schemas.SponsorListResponse.properties.items.type
- schemas.SponsorListResponse.properties.kind.default
- schemas.SponsorListResponse.properties.kind.type
- schemas.SponsorListResponse.properties.nextPageToken.type
- schemas.SponsorListResponse.properties.pageInfo.$ref
- schemas.SponsorListResponse.properties.tokenPagination.$ref
- schemas.SponsorListResponse.properties.visitorId.type
- schemas.SponsorListResponse.type
- schemas.SponsorSnippet.id
- schemas.SponsorSnippet.properties.channelId.type
- schemas.SponsorSnippet.properties.cumulativeDurationMonths.format
- schemas.SponsorSnippet.properties.cumulativeDurationMonths.type
- schemas.SponsorSnippet.properties.sponsorDetails.$ref
- schemas.SponsorSnippet.properties.sponsorSince.type
- schemas.SponsorSnippet.type
- schemas.VideoProjectDetails.properties.tags.items.type
- schemas.VideoProjectDetails.properties.tags.type

The following keys were added:
- resources.activities.methods.list.parameters.maxResults.maximum
- resources.activities.methods.list.parameters.maxResults.minimum
- resources.channels.methods.list.parameters.maxResults.maximum
- resources.channels.methods.list.parameters.maxResults.minimum
- resources.commentThreads.methods.list.parameters.maxResults.maximum
- resources.commentThreads.methods.list.parameters.maxResults.minimum
- resources.comments.methods.list.parameters.maxResults.maximum
- resources.comments.methods.list.parameters.maxResults.minimum
- resources.liveBroadcasts.methods.list.parameters.maxResults.maximum
- resources.liveBroadcasts.methods.list.parameters.maxResults.minimum
- resources.liveChatMessages.methods.list.parameters.maxResults.maximum
- resources.liveChatMessages.methods.list.parameters.maxResults.minimum
- resources.liveChatMessages.methods.list.parameters.profileImageSize.maximum
- resources.liveChatMessages.methods.list.parameters.profileImageSize.minimum
- resources.liveChatModerators.methods.list.parameters.maxResults.maximum
- resources.liveChatModerators.methods.list.parameters.maxResults.minimum
- resources.liveStreams.methods.list.parameters.maxResults.maximum
- resources.liveStreams.methods.list.parameters.maxResults.minimum
- resources.members.methods.list.parameters.maxResults.maximum
- resources.members.methods.list.parameters.maxResults.minimum
- resources.playlistItems.methods.list.parameters.maxResults.maximum
- resources.playlistItems.methods.list.parameters.maxResults.minimum
- resources.playlists.methods.list.parameters.maxResults.maximum
- resources.playlists.methods.list.parameters.maxResults.minimum
- resources.search.methods.list.parameters.maxResults.maximum
- resources.search.methods.list.parameters.maxResults.minimum
- resources.subscriptions.methods.list.parameters.maxResults.maximum
- resources.subscriptions.methods.list.parameters.maxResults.minimum
- resources.superChatEvents.methods.list.parameters.maxResults.maximum
- resources.superChatEvents.methods.list.parameters.maxResults.minimum
- resources.videos.methods.list.parameters.maxHeight.maximum
- resources.videos.methods.list.parameters.maxHeight.minimum
- resources.videos.methods.list.parameters.maxResults.maximum
- resources.videos.methods.list.parameters.maxResults.minimum
- resources.videos.methods.list.parameters.maxWidth.maximum
- resources.videos.methods.list.parameters.maxWidth.minimum
- schemas.ActivitySnippet.properties.publishedAt.format
- schemas.CaptionSnippet.properties.lastUpdated.format
- schemas.ChannelContentOwnerDetails.properties.timeLinked.format
- schemas.ChannelSnippet.properties.publishedAt.format
- schemas.CommentSnippet.properties.publishedAt.format
- schemas.CommentSnippet.properties.updatedAt.format
- schemas.LiveBroadcastContentDetails.properties.boundStreamLastUpdateTimeMs.format
- schemas.LiveBroadcastContentDetails.properties.stereoLayout.type
- schemas.LiveBroadcastSnippet.properties.actualEndTime.format
- schemas.LiveBroadcastSnippet.properties.actualStartTime.format
- schemas.LiveBroadcastSnippet.properties.publishedAt.format
- schemas.LiveBroadcastSnippet.properties.scheduledEndTime.format
- schemas.LiveBroadcastSnippet.properties.scheduledStartTime.format
- schemas.LiveChatMessageListResponse.properties.offlineAt.format
- schemas.LiveChatMessageSnippet.properties.publishedAt.format
- schemas.LiveStreamSnippet.properties.publishedAt.format
- schemas.PlaylistItemContentDetails.properties.videoPublishedAt.format
- schemas.PlaylistItemSnippet.properties.publishedAt.format
- schemas.PlaylistItemSnippet.properties.videoOwnerChannelId.type
- schemas.PlaylistItemSnippet.properties.videoOwnerChannelTitle.type
- schemas.PlaylistSnippet.properties.publishedAt.format
- schemas.PlaylistSnippet.properties.thumbnailVideoId.type
- schemas.SearchResultSnippet.properties.publishedAt.format
- schemas.SubscriptionSnippet.properties.publishedAt.format
- schemas.SuperChatEventSnippet.properties.createdAt.format
- schemas.VideoLiveStreamingDetails.properties.actualEndTime.format
- schemas.VideoLiveStreamingDetails.properties.actualStartTime.format
- schemas.VideoLiveStreamingDetails.properties.scheduledEndTime.format
- schemas.VideoLiveStreamingDetails.properties.scheduledStartTime.format
- schemas.VideoRecordingDetails.properties.recordingDate.format
- schemas.VideoSnippet.properties.publishedAt.format
- schemas.VideoStatus.properties.publishAt.format

The following keys were changed:
- resources.members.methods.list.scopes
- resources.membershipsLevels.methods.list.scopes
- resources.videoAbuseReportReasons.methods.list.parameters.hl.default

Author: yoshi-automation

docs/dyn/youtube_v3.activities.html

@@ -230,7 +230,7 @@ <h3>Method Details</h3>
         &quot;channelTitle&quot;: &quot;A String&quot;, # Channel title for the channel responsible for this activity
         &quot;description&quot;: &quot;A String&quot;, # The description of the resource primarily associated with the activity. @mutable youtube.activities.insert
         &quot;groupId&quot;: &quot;A String&quot;, # The group ID associated with the activity. A group ID identifies user events that are associated with the same user and resource. For example, if a user rates a video and marks the same video as a favorite, the entries for those events would have the same group ID in the user&#x27;s activity feed. In your user interface, you can avoid repetition by grouping events with the same groupId value.
-        &quot;publishedAt&quot;: &quot;A String&quot;, # The date and time that the video was uploaded. The value is specified in ISO 8601 format.
+        &quot;publishedAt&quot;: &quot;A String&quot;, # The date and time that the video was uploaded.
         &quot;thumbnails&quot;: { # Internal representation of thumbnails for a YouTube resource. # A map of thumbnail images associated with the resource that is primarily associated with the activity. For each object in the map, the key is the name of the thumbnail image, and the value is an object that contains other information about the thumbnail.
           &quot;default&quot;: { # A thumbnail is an image representing a YouTube resource. # The default image for this resource.
             &quot;height&quot;: 42, # (Optional) Height of the thumbnail image.

docs/dyn/youtube_v3.captions.html

@@ -172,7 +172,7 @@ <h3>Method Details</h3>
     &quot;isEasyReader&quot;: True or False, # Indicates whether caption track is formatted for &quot;easy reader,&quot; meaning it is at a third-grade level for language learners. The default value is false.
     &quot;isLarge&quot;: True or False, # Indicates whether the caption track uses large text for the vision-impaired. The default value is false.
     &quot;language&quot;: &quot;A String&quot;, # The language of the caption track. The property value is a BCP-47 language tag.
-    &quot;lastUpdated&quot;: &quot;A String&quot;, # The date and time when the caption track was last updated. The value is specified in ISO 8601 format.
+    &quot;lastUpdated&quot;: &quot;A String&quot;, # The date and time when the caption track was last updated.
     &quot;name&quot;: &quot;A String&quot;, # The name of the caption track. The name is intended to be visible to the user as an option during playback.
     &quot;status&quot;: &quot;A String&quot;, # The caption track&#x27;s status.
     &quot;trackKind&quot;: &quot;A String&quot;, # The caption track&#x27;s type.
@@ -206,7 +206,7 @@ <h3>Method Details</h3>
     &quot;isEasyReader&quot;: True or False, # Indicates whether caption track is formatted for &quot;easy reader,&quot; meaning it is at a third-grade level for language learners. The default value is false.
     &quot;isLarge&quot;: True or False, # Indicates whether the caption track uses large text for the vision-impaired. The default value is false.
     &quot;language&quot;: &quot;A String&quot;, # The language of the caption track. The property value is a BCP-47 language tag.
-    &quot;lastUpdated&quot;: &quot;A String&quot;, # The date and time when the caption track was last updated. The value is specified in ISO 8601 format.
+    &quot;lastUpdated&quot;: &quot;A String&quot;, # The date and time when the caption track was last updated.
     &quot;name&quot;: &quot;A String&quot;, # The name of the caption track. The name is intended to be visible to the user as an option during playback.
     &quot;status&quot;: &quot;A String&quot;, # The caption track&#x27;s status.
     &quot;trackKind&quot;: &quot;A String&quot;, # The caption track&#x27;s type.
@@ -250,7 +250,7 @@ <h3>Method Details</h3>
         &quot;isEasyReader&quot;: True or False, # Indicates whether caption track is formatted for &quot;easy reader,&quot; meaning it is at a third-grade level for language learners. The default value is false.
         &quot;isLarge&quot;: True or False, # Indicates whether the caption track uses large text for the vision-impaired. The default value is false.
         &quot;language&quot;: &quot;A String&quot;, # The language of the caption track. The property value is a BCP-47 language tag.
-        &quot;lastUpdated&quot;: &quot;A String&quot;, # The date and time when the caption track was last updated. The value is specified in ISO 8601 format.
+        &quot;lastUpdated&quot;: &quot;A String&quot;, # The date and time when the caption track was last updated.
         &quot;name&quot;: &quot;A String&quot;, # The name of the caption track. The name is intended to be visible to the user as an option during playback.
         &quot;status&quot;: &quot;A String&quot;, # The caption track&#x27;s status.
         &quot;trackKind&quot;: &quot;A String&quot;, # The caption track&#x27;s type.
@@ -285,7 +285,7 @@ <h3>Method Details</h3>
     &quot;isEasyReader&quot;: True or False, # Indicates whether caption track is formatted for &quot;easy reader,&quot; meaning it is at a third-grade level for language learners. The default value is false.
     &quot;isLarge&quot;: True or False, # Indicates whether the caption track uses large text for the vision-impaired. The default value is false.
     &quot;language&quot;: &quot;A String&quot;, # The language of the caption track. The property value is a BCP-47 language tag.
-    &quot;lastUpdated&quot;: &quot;A String&quot;, # The date and time when the caption track was last updated. The value is specified in ISO 8601 format.
+    &quot;lastUpdated&quot;: &quot;A String&quot;, # The date and time when the caption track was last updated.
     &quot;name&quot;: &quot;A String&quot;, # The name of the caption track. The name is intended to be visible to the user as an option during playback.
     &quot;status&quot;: &quot;A String&quot;, # The caption track&#x27;s status.
     &quot;trackKind&quot;: &quot;A String&quot;, # The caption track&#x27;s type.
@@ -319,7 +319,7 @@ <h3>Method Details</h3>
     &quot;isEasyReader&quot;: True or False, # Indicates whether caption track is formatted for &quot;easy reader,&quot; meaning it is at a third-grade level for language learners. The default value is false.
     &quot;isLarge&quot;: True or False, # Indicates whether the caption track uses large text for the vision-impaired. The default value is false.
     &quot;language&quot;: &quot;A String&quot;, # The language of the caption track. The property value is a BCP-47 language tag.
-    &quot;lastUpdated&quot;: &quot;A String&quot;, # The date and time when the caption track was last updated. The value is specified in ISO 8601 format.
+    &quot;lastUpdated&quot;: &quot;A String&quot;, # The date and time when the caption track was last updated.
     &quot;name&quot;: &quot;A String&quot;, # The name of the caption track. The name is intended to be visible to the user as an option during playback.
     &quot;status&quot;: &quot;A String&quot;, # The caption track&#x27;s status.
     &quot;trackKind&quot;: &quot;A String&quot;, # The caption track&#x27;s type.

docs/dyn/youtube_v3.channels.html

@@ -164,7 +164,7 @@ <h3>Method Details</h3>
               },
             ],
           },
-          &quot;bannerExternalUrl&quot;: &quot;A String&quot;, # This is used only in update requests; if it&#x27;s set, we use this URL to generate all of the above banner URLs.
+          &quot;bannerExternalUrl&quot;: &quot;A String&quot;, # This is generated when a ChannelBanner.Insert request has succeeded for the given channel.
           &quot;bannerImageUrl&quot;: &quot;A String&quot;, # Banner image. Desktop size (1060x175).
           &quot;bannerMobileExtraHdImageUrl&quot;: &quot;A String&quot;, # Banner image. Mobile size high resolution (1440x395).
           &quot;bannerMobileHdImageUrl&quot;: &quot;A String&quot;, # Banner image. Mobile size high resolution (1280x360).
@@ -247,7 +247,7 @@ <h3>Method Details</h3>
       },
       &quot;contentOwnerDetails&quot;: { # The contentOwnerDetails object encapsulates channel data that is relevant for YouTube Partners linked with the channel. # The contentOwnerDetails object encapsulates channel data that is relevant for YouTube Partners linked with the channel.
         &quot;contentOwner&quot;: &quot;A String&quot;, # The ID of the content owner linked to the channel.
-        &quot;timeLinked&quot;: &quot;A String&quot;, # The date and time of when the channel was linked to the content owner. The value is specified in ISO 8601 format.
+        &quot;timeLinked&quot;: &quot;A String&quot;, # The date and time when the channel was linked to the content owner.
       },
       &quot;conversionPings&quot;: { # The conversionPings object encapsulates information about conversion pings that need to be respected by the channel. # The conversionPings object encapsulates information about conversion pings that need to be respected by the channel.
         &quot;pings&quot;: [ # Pings that the app shall fire (authenticated by biscotti cookie). Each ping has a context, in which the app must fire the ping, and a url identifying the ping.
@@ -275,7 +275,7 @@ <h3>Method Details</h3>
           &quot;description&quot;: &quot;A String&quot;, # The localized strings for channel&#x27;s description.
           &quot;title&quot;: &quot;A String&quot;, # The localized strings for channel&#x27;s title.
         },
-        &quot;publishedAt&quot;: &quot;A String&quot;, # The date and time that the channel was created. The value is specified in &lt; a href=&quot;//www.w3.org/TR/NOTE-datetime&quot;&gt;ISO 8601 format.
+        &quot;publishedAt&quot;: &quot;A String&quot;, # The date and time that the channel was created.
         &quot;thumbnails&quot;: { # Internal representation of thumbnails for a YouTube resource. # A map of thumbnail images associated with the channel. For each object in the map, the key is the name of the thumbnail image, and the value is an object that contains other information about the thumbnail. When displaying thumbnails in your application, make sure that your code uses the image URLs exactly as they are returned in API responses. For example, your application should not use the http domain instead of the https domain in a URL returned in an API response. Beginning in July 2018, channel thumbnail URLs will only be available in the https domain, which is how the URLs appear in API responses. After that time, you might see broken images in your application if it tries to load YouTube images from the http domain. Thumbnail images might be empty for newly created channels and might take up to one day to populate.
           &quot;default&quot;: { # A thumbnail is an image representing a YouTube resource. # The default image for this resource.
             &quot;height&quot;: 42, # (Optional) Height of the thumbnail image.
@@ -409,7 +409,7 @@ <h3>Method Details</h3>
           },
         ],
       },
-      &quot;bannerExternalUrl&quot;: &quot;A String&quot;, # This is used only in update requests; if it&#x27;s set, we use this URL to generate all of the above banner URLs.
+      &quot;bannerExternalUrl&quot;: &quot;A String&quot;, # This is generated when a ChannelBanner.Insert request has succeeded for the given channel.
       &quot;bannerImageUrl&quot;: &quot;A String&quot;, # Banner image. Desktop size (1060x175).
       &quot;bannerMobileExtraHdImageUrl&quot;: &quot;A String&quot;, # Banner image. Mobile size high resolution (1440x395).
       &quot;bannerMobileHdImageUrl&quot;: &quot;A String&quot;, # Banner image. Mobile size high resolution (1280x360).
@@ -492,7 +492,7 @@ <h3>Method Details</h3>
   },
   &quot;contentOwnerDetails&quot;: { # The contentOwnerDetails object encapsulates channel data that is relevant for YouTube Partners linked with the channel. # The contentOwnerDetails object encapsulates channel data that is relevant for YouTube Partners linked with the channel.
     &quot;contentOwner&quot;: &quot;A String&quot;, # The ID of the content owner linked to the channel.
-    &quot;timeLinked&quot;: &quot;A String&quot;, # The date and time of when the channel was linked to the content owner. The value is specified in ISO 8601 format.
+    &quot;timeLinked&quot;: &quot;A String&quot;, # The date and time when the channel was linked to the content owner.
   },
   &quot;conversionPings&quot;: { # The conversionPings object encapsulates information about conversion pings that need to be respected by the channel. # The conversionPings object encapsulates information about conversion pings that need to be respected by the channel.
     &quot;pings&quot;: [ # Pings that the app shall fire (authenticated by biscotti cookie). Each ping has a context, in which the app must fire the ping, and a url identifying the ping.
@@ -520,7 +520,7 @@ <h3>Method Details</h3>
       &quot;description&quot;: &quot;A String&quot;, # The localized strings for channel&#x27;s description.
       &quot;title&quot;: &quot;A String&quot;, # The localized strings for channel&#x27;s title.
     },
-    &quot;publishedAt&quot;: &quot;A String&quot;, # The date and time that the channel was created. The value is specified in &lt; a href=&quot;//www.w3.org/TR/NOTE-datetime&quot;&gt;ISO 8601 format.
+    &quot;publishedAt&quot;: &quot;A String&quot;, # The date and time that the channel was created.
     &quot;thumbnails&quot;: { # Internal representation of thumbnails for a YouTube resource. # A map of thumbnail images associated with the channel. For each object in the map, the key is the name of the thumbnail image, and the value is an object that contains other information about the thumbnail. When displaying thumbnails in your application, make sure that your code uses the image URLs exactly as they are returned in API responses. For example, your application should not use the http domain instead of the https domain in a URL returned in an API response. Beginning in July 2018, channel thumbnail URLs will only be available in the https domain, which is how the URLs appear in API responses. After that time, you might see broken images in your application if it tries to load YouTube images from the http domain. Thumbnail images might be empty for newly created channels and might take up to one day to populate.
       &quot;default&quot;: { # A thumbnail is an image representing a YouTube resource. # The default image for this resource.
         &quot;height&quot;: 42, # (Optional) Height of the thumbnail image.
@@ -627,7 +627,7 @@ <h3>Method Details</h3>
           },
         ],
       },
-      &quot;bannerExternalUrl&quot;: &quot;A String&quot;, # This is used only in update requests; if it&#x27;s set, we use this URL to generate all of the above banner URLs.
+      &quot;bannerExternalUrl&quot;: &quot;A String&quot;, # This is generated when a ChannelBanner.Insert request has succeeded for the given channel.
       &quot;bannerImageUrl&quot;: &quot;A String&quot;, # Banner image. Desktop size (1060x175).
       &quot;bannerMobileExtraHdImageUrl&quot;: &quot;A String&quot;, # Banner image. Mobile size high resolution (1440x395).
       &quot;bannerMobileHdImageUrl&quot;: &quot;A String&quot;, # Banner image. Mobile size high resolution (1280x360).
@@ -710,7 +710,7 @@ <h3>Method Details</h3>
   },
   &quot;contentOwnerDetails&quot;: { # The contentOwnerDetails object encapsulates channel data that is relevant for YouTube Partners linked with the channel. # The contentOwnerDetails object encapsulates channel data that is relevant for YouTube Partners linked with the channel.
     &quot;contentOwner&quot;: &quot;A String&quot;, # The ID of the content owner linked to the channel.
-    &quot;timeLinked&quot;: &quot;A String&quot;, # The date and time of when the channel was linked to the content owner. The value is specified in ISO 8601 format.
+    &quot;timeLinked&quot;: &quot;A String&quot;, # The date and time when the channel was linked to the content owner.
   },
   &quot;conversionPings&quot;: { # The conversionPings object encapsulates information about conversion pings that need to be respected by the channel. # The conversionPings object encapsulates information about conversion pings that need to be respected by the channel.
     &quot;pings&quot;: [ # Pings that the app shall fire (authenticated by biscotti cookie). Each ping has a context, in which the app must fire the ping, and a url identifying the ping.
@@ -738,7 +738,7 @@ <h3>Method Details</h3>
       &quot;description&quot;: &quot;A String&quot;, # The localized strings for channel&#x27;s description.
       &quot;title&quot;: &quot;A String&quot;, # The localized strings for channel&#x27;s title.
     },
-    &quot;publishedAt&quot;: &quot;A String&quot;, # The date and time that the channel was created. The value is specified in &lt; a href=&quot;//www.w3.org/TR/NOTE-datetime&quot;&gt;ISO 8601 format.
+    &quot;publishedAt&quot;: &quot;A String&quot;, # The date and time that the channel was created.
     &quot;thumbnails&quot;: { # Internal representation of thumbnails for a YouTube resource. # A map of thumbnail images associated with the channel. For each object in the map, the key is the name of the thumbnail image, and the value is an object that contains other information about the thumbnail. When displaying thumbnails in your application, make sure that your code uses the image URLs exactly as they are returned in API responses. For example, your application should not use the http domain instead of the https domain in a URL returned in an API response. Beginning in July 2018, channel thumbnail URLs will only be available in the https domain, which is how the URLs appear in API responses. After that time, you might see broken images in your application if it tries to load YouTube images from the http domain. Thumbnail images might be empty for newly created channels and might take up to one day to populate.
       &quot;default&quot;: { # A thumbnail is an image representing a YouTube resource. # The default image for this resource.
         &quot;height&quot;: 42, # (Optional) Height of the thumbnail image.