feat(generator): update protoc to v3.15.3

proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/DetectLanguageRequest.java

@@ -330,6 +330,20 @@ public com.google.protobuf.ByteString getModelBytes() {
   }
 
   public static final int CONTENT_FIELD_NUMBER = 1;
+  /**
+   *
+   *
+   * <pre>
+   * The content of the input stored as a string.
+   * </pre>
+   *
+   * <code>string content = 1;</code>
+   *
+   * @return Whether the content field is set.
+   */
+  public boolean hasContent() {
+    return sourceCase_ == 1;
+  }
   /**
    *
    *
@@ -1285,6 +1299,21 @@ public Builder setModelBytes(com.google.protobuf.ByteString value) {
       return this;
     }
 
+    /**
+     *
+     *
+     * <pre>
+     * The content of the input stored as a string.
+     * </pre>
+     *
+     * <code>string content = 1;</code>
+     *
+     * @return Whether the content field is set.
+     */
+    @java.lang.Override
+    public boolean hasContent() {
+      return sourceCase_ == 1;
+    }
     /**
      *
      *

proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/DetectLanguageRequestOrBuilder.java

@@ -101,6 +101,18 @@ public interface DetectLanguageRequestOrBuilder
    */
   com.google.protobuf.ByteString getModelBytes();
 
+  /**
+   *
+   *
+   * <pre>
+   * The content of the input stored as a string.
+   * </pre>
+   *
+   * <code>string content = 1;</code>
+   *
+   * @return Whether the content field is set.
+   */
+  boolean hasContent();
   /**
    *
    *

proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/DetectLanguageRequest.java

@@ -330,6 +330,20 @@ public com.google.protobuf.ByteString getModelBytes() {
   }
 
   public static final int CONTENT_FIELD_NUMBER = 1;
+  /**
+   *
+   *
+   * <pre>
+   * The content of the input stored as a string.
+   * </pre>
+   *
+   * <code>string content = 1;</code>
+   *
+   * @return Whether the content field is set.
+   */
+  public boolean hasContent() {
+    return sourceCase_ == 1;
+  }
   /**
    *
    *
@@ -1286,6 +1300,21 @@ public Builder setModelBytes(com.google.protobuf.ByteString value) {
       return this;
     }
 
+    /**
+     *
+     *
+     * <pre>
+     * The content of the input stored as a string.
+     * </pre>
+     *
+     * <code>string content = 1;</code>
+     *
+     * @return Whether the content field is set.
+     */
+    @java.lang.Override
+    public boolean hasContent() {
+      return sourceCase_ == 1;
+    }
     /**
      *
      *

proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/DetectLanguageRequestOrBuilder.java

@@ -101,6 +101,18 @@ public interface DetectLanguageRequestOrBuilder
    */
   com.google.protobuf.ByteString getModelBytes();
 
+  /**
+   *
+   *
+   * <pre>
+   * The content of the input stored as a string.
+   * </pre>
+   *
+   * <code>string content = 1;</code>
+   *
+   * @return Whether the content field is set.
+   */
+  boolean hasContent();
   /**
    *
    *

synth.metadata

@@ -4,23 +4,23 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-translate.git",
-        "sha": "91ea78bd9bcc535dd8eabad721ed2039e49148f8"
+        "sha": "6bd38b21886f474438678767bbbc0b4e9302d4af"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "af8f71dae961ee036a0ac52a1965270149a6b2c9",
-        "internalRef": "358516065"
+        "sha": "f6dd7e47620566925a4b3f1ce029e74e1b2f2516",
+        "internalRef": "359781040"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "af8f71dae961ee036a0ac52a1965270149a6b2c9",
-        "internalRef": "358516065"
+        "sha": "f6dd7e47620566925a4b3f1ce029e74e1b2f2516",
+        "internalRef": "359781040"
       }
     },
     {