Document the backend interface.
diff --git a/docs/hazmat/backends/interfaces.rst b/docs/hazmat/backends/interfaces.rst
index c1ce621..341fdc3 100644
--- a/docs/hazmat/backends/interfaces.rst
+++ b/docs/hazmat/backends/interfaces.rst
@@ -315,12 +315,28 @@
             :class:`~cryptography.hazmat.primitives.interfaces.AsymmetricPadding`
             provider.
 
+<<<<<<< HEAD
         :return bytes: The encrypted data.
 
         :raises cryptography.exceptions.UnsupportedAlgorithm: If an unsupported
             MGF, hash function, or padding is chosen.
 
         :raises ValueError: When plaintext is too long for the key size.
+=======
+    .. method:: load_rsa_numbers(numbers):
+
+        :param numbers: An instance of
+            :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateNumbers` or
+            :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicNumbers`.
+
+        :returns: A provider of
+            :class:`~cryptography.hazmat.primitives.interfaces.RSAPrivateKey` or
+            :class:`~cryptography.hazmat.primitives.interfaces.RSAPublicKey`
+            depending on if it's input was an
+            :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateNumbers` or
+            :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicNumbers`.
+
+>>>>>>> 70cf9ba... Document the backend interface.
 
 .. class:: TraditionalOpenSSLSerializationBackend