public Builder clearResourceType() {
        bitField0_ = (bitField0_ & ~0x00000001);
        resourceType_ = 0;
        onChanged();
        return this;
      }
<pre>
Required. The type of the Google Drive resource.
</pre>

<code>
.google.cloud.vertexai.v1.GoogleDriveSource.ResourceId.ResourceType resource_type = 1 [(.google.api.field_behavior) = REQUIRED];
</code>

@return This builder for chaining.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/GoogleDriveSource.java