docs: docs update (#911)

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Fixes #<issue_number_goes_here> 🦕
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+  margin-left: 2 em;
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+.method  {
+  margin-top: 1em;
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+</style>
+
+<h1><a href="toolresults_v1beta3.html">Cloud Tool Results API</a> . <a href="toolresults_v1beta3.clusters.html">clusters</a></h1>
+<h2>Instance Methods</h2>
+<p class="toc_element">
+  <code><a href="#get">get(projectId, historyId, executionId, clusterId, x__xgafv=None)</a></code></p>
+<p class="firstline">Retrieves a single screenshot cluster by its ID</p>
+<p class="toc_element">
+  <code><a href="#list">list(projectId, historyId, executionId, x__xgafv=None)</a></code></p>
+<p class="firstline">Lists Screenshot Clusters</p>
+<h3>Method Details</h3>
+<div class="method">
+    <code class="details" id="get">get(projectId, historyId, executionId, clusterId, x__xgafv=None)</code>
+  <pre>Retrieves a single screenshot cluster by its ID
+
+Args:
+  projectId: string, A Project id.
+
+Required. (required)
+  historyId: string, A History id.
+
+Required. (required)
+  executionId: string, An Execution id.
+
+Required. (required)
+  clusterId: string, A Cluster id
+
+Required. (required)
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    {
+    &quot;activity&quot;: &quot;A String&quot;, # A string that describes the activity of every screen in the cluster.
+    &quot;screens&quot;: [ # Full list of screens.
+      {
+        &quot;model&quot;: &quot;A String&quot;, # Model of the device that the screenshot was taken on.
+            # Required.
+        &quot;version&quot;: &quot;A String&quot;, # OS version of the device that the screenshot was taken on.
+            # Required.
+        &quot;locale&quot;: &quot;A String&quot;, # Locale of the device that the screenshot was taken on.
+            # Required.
+        &quot;fileReference&quot;: &quot;A String&quot;, # File reference of the png file.
+            # Required.
+      },
+    ],
+    &quot;keyScreen&quot;: { # A singular screen that represents the cluster as a whole. This screen will
+        # act as the &quot;cover&quot; of the entire cluster. When users look at the clusters,
+        # only the key screen from each cluster will be shown. Which screen is the
+        # key screen is determined by the ClusteringAlgorithm
+      &quot;model&quot;: &quot;A String&quot;, # Model of the device that the screenshot was taken on.
+          # Required.
+      &quot;version&quot;: &quot;A String&quot;, # OS version of the device that the screenshot was taken on.
+          # Required.
+      &quot;locale&quot;: &quot;A String&quot;, # Locale of the device that the screenshot was taken on.
+          # Required.
+      &quot;fileReference&quot;: &quot;A String&quot;, # File reference of the png file.
+          # Required.
+    },
+    &quot;clusterId&quot;: &quot;A String&quot;, # A unique identifier for the cluster.
+        # @OutputOnly
+  }</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="list">list(projectId, historyId, executionId, x__xgafv=None)</code>
+  <pre>Lists Screenshot Clusters
+
+Returns the list of screenshot clusters corresponding to an execution.
+Screenshot clusters are created after the execution is finished.
+Clusters are created from a set of screenshots. Between any two
+screenshots, a matching score is calculated based off their metadata
+that determines how similar they are. Screenshots are placed
+in the cluster that has screens which have the highest matching
+scores.
+
+Args:
+  projectId: string, A Project id.
+
+Required. (required)
+  historyId: string, A History id.
+
+Required. (required)
+  executionId: string, An Execution id.
+
+Required. (required)
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    {
+    &quot;clusters&quot;: [ # The set of clusters associated with an execution
+        # Always set
+      {
+        &quot;activity&quot;: &quot;A String&quot;, # A string that describes the activity of every screen in the cluster.
+        &quot;screens&quot;: [ # Full list of screens.
+          {
+            &quot;model&quot;: &quot;A String&quot;, # Model of the device that the screenshot was taken on.
+                # Required.
+            &quot;version&quot;: &quot;A String&quot;, # OS version of the device that the screenshot was taken on.
+                # Required.
+            &quot;locale&quot;: &quot;A String&quot;, # Locale of the device that the screenshot was taken on.
+                # Required.
+            &quot;fileReference&quot;: &quot;A String&quot;, # File reference of the png file.
+                # Required.
+          },
+        ],
+        &quot;keyScreen&quot;: { # A singular screen that represents the cluster as a whole. This screen will
+            # act as the &quot;cover&quot; of the entire cluster. When users look at the clusters,
+            # only the key screen from each cluster will be shown. Which screen is the
+            # key screen is determined by the ClusteringAlgorithm
+          &quot;model&quot;: &quot;A String&quot;, # Model of the device that the screenshot was taken on.
+              # Required.
+          &quot;version&quot;: &quot;A String&quot;, # OS version of the device that the screenshot was taken on.
+              # Required.
+          &quot;locale&quot;: &quot;A String&quot;, # Locale of the device that the screenshot was taken on.
+              # Required.
+          &quot;fileReference&quot;: &quot;A String&quot;, # File reference of the png file.
+              # Required.
+        },
+        &quot;clusterId&quot;: &quot;A String&quot;, # A unique identifier for the cluster.
+            # @OutputOnly
+      },
+    ],
+  }</pre>
+</div>
+
+</body></html>
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