public Builder setServiceAttachmentBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      serviceAttachment_ = value;
      bitField0_ |= 0x00000020;
      onChanged();
      return this;
    }
<pre>
Required. The service attachment which is the target of the PSC connection,
in the form of
projects/{project-id}/regions/{region}/serviceAttachments/{service-attachment-id}.
</pre>

<code>
string service_attachment = 6 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
</code>

@param value The bytes for serviceAttachment to set.
@return This builder for chaining.
java-valkey/proto-google-cloud-valkey-v1beta/src/main/java/com/google/cloud/memorystore/v1beta/PscConnection.java