public Builder clearProjectId() {
      projectId_ = getDefaultInstance().getProjectId();
      bitField0_ = (bitField0_ & ~0x00000010);
      onChanged();
      return this;
    }
<pre>
Required. The consumer project_id where PSC connections are established.
This should be the same project_id that the instance is being created in.
</pre>

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

@return This builder for chaining.
java-valkey/proto-google-cloud-valkey-v1beta/src/main/java/com/google/cloud/memorystore/v1beta/PscAutoConnection.java