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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _as_versioned_jar(self, internal_target):
 """Fetches the jar representation of the given target, and applies the latest pushdb version."""

    jar, _ = internal_target.get_artifact_info()
    pushdb_entry = self._get_db(internal_target).get_entry(internal_target)
    return jar.copy(rev=pushdb_entry.version().version())