public Builder clearProjectId() {
      projectId_ = getDefaultInstance().getProjectId();
      bitField0_ = (bitField0_ & ~0x00000010);
      onChanged();
      return this;
    }
<pre>
Output only. The consumer project_id where the forwarding rule is created
from.
</pre>

<code>string project_id = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>

@return This builder for chaining.
java-valkey/proto-google-cloud-valkey-v1/src/main/java/com/google/cloud/memorystore/v1/PscConnection.java