subprojects/parseq-examples/src/main/java/com/linkedin/parseq/example/domain/Examples.java
Task<String> createMailboxSummary(int id) {
    return Task.par(createExtendedSummary(id), fetchMailbox(id))
        .map("createMailboxSummary", (summary, mailbox) -> summary + " has " + mailbox.size() + " messages");
  }
Task<String> createMailboxSummary(int id) {
    return Task.par(createExtendedSummary(id), fetchMailbox(id))
        .map("createMailboxSummary", (summary, mailbox) -> summary + " has " + mailbox.size() + " messages");
  }
create mailbox summary for a person: "<first name> <last name> has <X> messages"