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+<h1><a href="youtube_v3.html">YouTube Data API</a> . <a href="youtube_v3.thumbnails.html">thumbnails</a></h1>
+<h2>Instance Methods</h2>
+<p class="toc_element">
+  <code><a href="#set">set(videoId, media_body=None)</a></code></p>
+<p class="firstline">Uploads a custom video thumbnail to YouTube and sets it for a video.</p>
+<h3>Method Details</h3>
+<div class="method">
+    <code class="details" id="set">set(videoId, media_body=None)</code>
+  <pre>Uploads a custom video thumbnail to YouTube and sets it for a video.
+
+Args:
+  videoId: string, The videoId parameter specifies a YouTube video ID for which the custom video thumbnail is being provided. (required)
+  media_body: string, The filename of the media request body, or an instance of a MediaUpload object.
+
+Returns:
+  An object of the form:
+
+    { # A list of thumbnails returned as the response to a thumbnails.set call.
+    "items": [ # A list of thumbnails.
+      { # Internal representation of thumbnails for a YouTube resource.
+        "default": { # A thumbnail is an image representing a YouTube resource. # The default image for this resource.
+          "url": "A String", # The thumbnail image's URL.
+          "width": 42, # (Optional) Width of the thumbnail image.
+          "height": 42, # (Optional) Height of the thumbnail image.
+        },
+        "high": { # A thumbnail is an image representing a YouTube resource. # The high quality image for this resource.
+          "url": "A String", # The thumbnail image's URL.
+          "width": 42, # (Optional) Width of the thumbnail image.
+          "height": 42, # (Optional) Height of the thumbnail image.
+        },
+        "medium": { # A thumbnail is an image representing a YouTube resource. # The medium quality image for this resource.
+          "url": "A String", # The thumbnail image's URL.
+          "width": 42, # (Optional) Width of the thumbnail image.
+          "height": 42, # (Optional) Height of the thumbnail image.
+        },
+        "maxres": { # A thumbnail is an image representing a YouTube resource. # The maximum resolution quality image for this resource.
+          "url": "A String", # The thumbnail image's URL.
+          "width": 42, # (Optional) Width of the thumbnail image.
+          "height": 42, # (Optional) Height of the thumbnail image.
+        },
+        "standard": { # A thumbnail is an image representing a YouTube resource. # The standard quality image for this resource.
+          "url": "A String", # The thumbnail image's URL.
+          "width": 42, # (Optional) Width of the thumbnail image.
+          "height": 42, # (Optional) Height of the thumbnail image.
+        },
+      },
+    ],
+    "kind": "youtube#thumbnailListResponse", # The type of the API response. For this operation, the value will be youtube#thumbnailListResponse.
+    "etag": "A String", # The ETag of the response.
+    "visitorId": "A String", # The visitorId identifies the visitor.
+  }</pre>
+</div>
+
+</body></html>
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