public Builder setXMin(long value) {

        xMin_ = value;
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
<pre>
The minimum x coordinate value.
</pre>

<code>optional int64 x_min = 1;</code>

@param value The xMin to set.
@return This builder for chaining.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/Partition.java