fix

Author: fchapoton

src/sage/rings/laurent_series_ring.py

@@ -793,6 +793,8 @@ def is_exact(self):
     @cached_method
     def gen(self, n=0):
         """
+        Return the generator.
+
         EXAMPLES::
 
             sage: R = LaurentSeriesRing(QQ, "x")
@@ -804,6 +806,15 @@ def gen(self, n=0):
         return self.element_class(self, [0, 1])
 
     def gens(self):
+        """
+        Return the generators.
+
+        EXAMPLES::
+
+            sage: R = LaurentSeriesRing(QQ, "x")
+            sage: R.gens()
+            (x,)
+        """
         return (self.gen(),)
 
     def uniformizer(self):