public Builder addPscAttachmentDetails(
        com.google.cloud.memorystore.v1.PscAttachmentDetail.Builder builderForValue) {
      if (pscAttachmentDetailsBuilder_ == null) {
        ensurePscAttachmentDetailsIsMutable();
        pscAttachmentDetails_.add(builderForValue.build());
        onChanged();
      } else {
        pscAttachmentDetailsBuilder_.addMessage(builderForValue.build());
      }
      return this;
    }
<pre>
Output only. Service attachment details to configure PSC connections.
</pre>

<code>
repeated .google.cloud.memorystore.v1.PscAttachmentDetail psc_attachment_details = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-valkey/proto-google-cloud-valkey-v1/src/main/java/com/google/cloud/memorystore/v1/Instance.java