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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 create_gre_tunnel_no_encryption(cls, name, local_endpoint, remote_endpoint, mtu=0, pmtu_discovery=True, ttl=0, enabled=True, comment=None):
 """ Create a GRE Tunnel with no encryption. See `create_gre_tunnel_mode` for constructor descriptions. """

        return cls.create_gre_tunnel_mode(
            name, local_endpoint, remote_endpoint, policy_vpn=None,
            mtu=mtu, pmtu_discovery=pmtu_discovery, ttl=ttl,
            enabled=enabled, comment=comment)