What follows is an opinion from a United States Court of Appeals. Your task is to identify the type of district court decision or judgment appealed from (i.e., the nature of the decision below in the district court).

Opinion:
George Stine SMITH, Appellant, v. John C. TAYLOR, Warden, United States Penitentiary, Leavenworth, Kansas, Appellee.
No. 7327.
United States Court of Appeals Tenth Circuit.
June 26, 1963.
John J. Mullins, Jr., Denver, Colo., for appellant.
Benjamin E. Franklin, Asst. U. S. Atty. (Newell A. George, U. S. Atty., was with him on the brief), for appellee.
Before MURRAH, Chief Judge, and PHILLIPS and SETH, Circuit Judges.
PER CURIAM.
This is an appeal from an order denying an application for a writ of habeas corpus. The petitioner alleges no facts whatever showing he is entitled to discharge from custody. Apparently what he really seeks is certain documents from the trial court. For that habeas corpus is not an appropriate remedy.
Affirmed.

Question: What is the type of district court decision or judgment appealed from (i.e., the nature of the decision below in the district court)?

Choices:
Trial (either jury or bench trial)
Injunction or denial of injunction or stay of injunction
Summary judgment or denial of summary judgment
Guilty plea or denial of motion to withdraw plea
Dismissal (include dismissal of petition for habeas corpus)
Appeals of post judgment orders (e.g., attorneys' fees, costs, damages, JNOV - judgment nothwithstanding the verdict)
Appeal of post settlement orders
Not a final judgment: interlocutory appeal
Not a final judgment: mandamus
Other (e.g., pre-trial orders, rulings on motions, directed verdicts) or could not determine nature of final judgment
Does not fit any of the above categories, but opinion mentions a "trial judge"
Not applicable (e.g., decision below was by a federal administrative agency, tax court)

Answer: 4