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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 aes_ecb_encrypt(self, key_handle, plaintext):
 """ AES ECB encrypt using a key handle. @warning: Please be aware of the known limitations of AES ECB mode before using it! @param key_handle: Key handle to use for AES ECB encryption @param plaintext: Data to encrypt @type key_handle: integer or string @type plaintext: string @returns: Ciphertext @rtype: string @see: L{pyhsm.aes_ecb_cmd.YHSM_Cmd_AES_ECB_Encrypt} """

        return pyhsm.aes_ecb_cmd.YHSM_Cmd_AES_ECB_Encrypt( \
            self.stick, key_handle, plaintext).execute()