The Due.t type represents an optional urgency or priority class that can be attached to a code review comment (CR) using the CR syntax. This classification is a general convenience provided by the library to help organize and filter CRs, but the exact workflow and expectations associated with each class — such as when a Soon or Someday comment should be addressed — are intentionally left undefined here.

It is up to higher-level tools or code review systems built on top of CRs to define and enforce specific policies or behaviors around these classes.

As a rule of thumb:

• Now: Should be addressed promptly.
• Soon: Should be addressed in the near future.
• Someday: Can be deferred until later.

These categories are intended to be flexible and adaptable to the needs of various development process.