def get_parameters_for_import(KeyId=None, WrappingAlgorithm=None,
    WrappingKeySpec=None):
    """
    Returns the items you need in order to import key material into AWS KMS from your existing key management infrastructure. For more information about importing key material into AWS KMS, see Importing Key Material in the AWS Key Management Service Developer Guide .
    You must specify the key ID of the customer master key (CMK) into which you will import key material. This CMK's Origin must be EXTERNAL . You must also specify the wrapping algorithm and type of wrapping key (public key) that you will use to encrypt the key material.
    This operation returns a public key and an import token. Use the public key to encrypt the key material. Store the import token to send with a subsequent  ImportKeyMaterial request. The public key and import token from the same response must be used together. These items are valid for 24 hours, after which they cannot be used for a subsequent  ImportKeyMaterial request. To retrieve new ones, send another GetParametersForImport request.
    See also: AWS API Documentation
    
    Examples
    The following example retrieves the public key and import token for the specified CMK.
    Expected Output:
    
    :example: response = client.get_parameters_for_import(
        KeyId='string',
        WrappingAlgorithm='RSAES_PKCS1_V1_5'|'RSAES_OAEP_SHA_1'|'RSAES_OAEP_SHA_256',
        WrappingKeySpec='RSA_2048'
    )
    
    
    :type KeyId: string
    :param KeyId: [REQUIRED]
            The identifier of the CMK into which you will import key material. The CMK's Origin must be EXTERNAL .
            A valid identifier is the unique key ID or the Amazon Resource Name (ARN) of the CMK. Examples:
            Unique key ID: 1234abcd-12ab-34cd-56ef-1234567890ab
            Key ARN: arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab
            

    :type WrappingAlgorithm: string
    :param WrappingAlgorithm: [REQUIRED]
            The algorithm you will use to encrypt the key material before importing it with ImportKeyMaterial . For more information, see Encrypt the Key Material in the AWS Key Management Service Developer Guide .
            

    :type WrappingKeySpec: string
    :param WrappingKeySpec: [REQUIRED]
            The type of wrapping key (public key) to return in the response. Only 2048-bit RSA public keys are supported.
            

    :rtype: dict
    :return: {
        'KeyId': 'string',
        'ImportToken': b'bytes',
        'PublicKey': b'bytes',
        'ParametersValidTo': datetime(2015, 1, 1)
    }
    
    
    """
    pass
