public static com.google.storagetransfer.v1.proto.TransferProto.CreateAgentPoolRequest
        parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
<pre>
Required. The ID of the agent pool to create.

The `agent_pool_id` must meet the following requirements:

*   Length of 128 characters or less.
*   Not start with the string `goog`.
*   Start with a lowercase ASCII character, followed by:
    *   Zero or more: lowercase Latin alphabet characters, numerals,
        hyphens (`-`), periods (`.`), underscores (`_`), or tildes (`~`).
    *   One or more numerals or lowercase ASCII characters.

As expressed by the regular expression:
`^(?!goog)[a-z]([a-z0-9-._~]*[a-z0-9])?$`.
</pre>

<code>string agent_pool_id = 3 [(.google.api.field_behavior) = REQUIRED];</code>

@return The bytes for agentPoolId.
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferProto.java