The costs of an application to dissolve an injunction may be allowed and taxed by the court, according to its discretion, in making the final decree. In any action in which a motion for the dissolution of a temporary injunction is heard before any judge when the court is not in session, the judge shall be entitled to be paid a reasonable sum for his time and expenses by the party moving for the dissolution, which shall be taxed in the bill of costs in the same manner as other costs in actions for equitable relief.

Judgment for costs upon withdrawal is a “final decree”; taxation of costs allowable within the discretion of the court is not reviewable. 62 C. 490.