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The parameter value is an ISO 3166-1 alpha-2 country code. This parameter can only be used in conjunction with the chart parameter. The regionCode parameter instructs the API to select a video chart available in the specified region.
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Note: This parameter is supported for use in conjunction with the myRating parameter, but it is not supported for use in conjunction with the id parameter. In an API response, the nextPageToken and prevPageToken properties identify other pages that could be retrieved. The pageToken parameter identifies a specific page in the result set that should be returned. The CMS account that the user authenticates with must be linked to the specified YouTube content owner. It allows content owners to authenticate once and get access to all their video and channel data, without having to provide authentication credentials for each individual channel. This parameter is intended for YouTube content partners that own and manage many different YouTube channels. The onBehalfOfContentOwner parameter indicates that the request's authorization credentials identify a YouTube CMS user who is acting on behalf of the content owner specified in the parameter value. Note: This parameter is intended exclusively for YouTube content partners. This parameter can only be used in a properly authorized request. Acceptable values are 72 to 8192, inclusive.
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If the maxHeight parameter is also provided, the player may be narrower than maxWidth in order to not violate the maximum height. You can use this parameter to specify that instead of the default dimensions, the embed code should use a width appropriate for your application layout. The maxWidth parameter specifies the maximum width of the embedded player returned in the player.embedHtml property. Acceptable values are 1 to 50, inclusive. The maxResults parameter specifies the maximum number of items that should be returned in the result set. If the maxWidth parameter is also provided, the player may be shorter than the maxHeight in order to not violate the maximum width. You can use this parameter to specify that instead of the default dimensions, the embed code should use a height appropriate for your application layout. The maxHeight parameter specifies the maximum height of the embedded player returned in the player.embedHtml property. However, if localized details are not available, the snippet.localized object will contain resource details in the resource's default language. If localized resource details are available in that language, the resource's snippet.localized object will contain the localized values. The parameter value must be a language code included in the list returned by the i18nLanguages.list method. The hl parameter instructs the API to retrieve localized resource metadata for a specific application language that the YouTube website supports.