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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_key_pair(self, key_name):
 """ Create a new key pair for your account. This will create the key pair within the region you are currently connected to. :type key_name: string :param key_name: The name of the new keypair :rtype: :class:`boto.ec2.keypair.KeyPair` :return: The newly created :class:`boto.ec2.keypair.KeyPair`. The material attribute of the new KeyPair object will contain the the unencrypted PEM encoded RSA private key. """

        params = {'KeyName':key_name}
        return self.get_object('CreateKeyPair', params, KeyPair, verb='POST')