public Builder clearY() {
      bitField0_ = (bitField0_ & ~0x00000002);
      y_ = 0;
      onChanged();
      return this;
    }
<pre>
Y coordinate.
</pre>

<code>int32 y = 2;</code>

@return This builder for chaining.
java-vision/proto-google-cloud-vision-v1p2beta1/src/main/java/com/google/cloud/vision/v1p2beta1/Vertex.java