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Diversion Network Result type.

There is a newer version: 1.29.2

package net.diversionmc.error;

import java.util.Collection;

/**
 * Write-only wrapper for a backed-up resource collection
 * - in a {@link Result#tryGet(Class, TryF)} / {@link Success#tryRun(Class, TryC)} only writing to the list is allowed,
 *   while the backed up list is accessed in those methods.
 */
public class TryWithResources {
    private final Collection backup;

    public TryWithResources(Collection backup) {
        this.backup = backup;
    }

    public  R resource(R resource) {
        backup.add(resource);
        return resource;
    }
}