public Builder setPscAutoConnection(com.google.cloud.memorystore.v1.PscAutoConnection value) {
        if (pscAutoConnectionBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          connection_ = value;
          onChanged();
        } else {
          pscAutoConnectionBuilder_.setMessage(value);
        }
        connectionCase_ = 1;
        return this;
      }
<pre>
Immutable. Detailed information of a PSC connection that is created
through service connectivity automation.
</pre>

<code>
.google.cloud.memorystore.v1.PscAutoConnection psc_auto_connection = 1 [(.google.api.field_behavior) = IMMUTABLE];
</code>
java-valkey/proto-google-cloud-valkey-v1/src/main/java/com/google/cloud/memorystore/v1/Instance.java