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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 copy(self, dst_bucket, dst_key, metadata=None, reduced_redundancy=False, preserve_acl=False, encrypt_key=False):
 """ Copy this Key to another bucket. :type dst_bucket: string :param dst_bucket: The name of the destination bucket :type dst_key: string :param dst_key: The name of the destination key :type metadata: dict :param metadata: Metadata to be associated with new key. If metadata is supplied, it will replace the metadata of the source key being copied. If no metadata is supplied, the source key's metadata will be copied to the new key. :type reduced_redundancy: bool :param reduced_redundancy: If True, this will force the storage class of the new Key to be REDUCED_REDUNDANCY regardless of the storage class of the key being copied. The Reduced Redundancy Storage (RRS) feature of S3, provides lower redundancy at lower storage cost. :type preserve_acl: bool :param preserve_acl: If True, the ACL from the source key will be copied to the destination key. If False, the destination key will have the default ACL. Note that preserving the ACL in the new key object will require two additional API calls to S3, one to retrieve the current ACL and one to set that ACL on the new object. If you don't care about the ACL, a value of False will be significantly more efficient. :type encrypt_key: bool :param encrypt_key: If True, the new copy of the object will be encrypted on the server-side by S3 and will be stored in an encrypted form while at rest in S3. :rtype: :class:`boto.s3.key.Key` or subclass :returns: An instance of the newly created key object """

        dst_bucket = self.bucket.connection.lookup(dst_bucket)
        if reduced_redundancy:
            storage_class = 'REDUCED_REDUNDANCY'
        else:
            storage_class = self.storage_class
        return dst_bucket.copy_key(dst_key, self.bucket.name,
                                   self.name, metadata,
                                   storage_class=storage_class,
                                   preserve_acl=preserve_acl,
                                   encrypt_key=encrypt_key)