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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 find_node_api_version(self, node_pyxb):
 """Find the highest API major version supported by node."""

        max_major = 0
        for s in node_pyxb.services.service:
            max_major = max(max_major, int(s.version[1:]))
        return max_major