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Separating out fix from adding seoncds_n_decimal

Author: ashb

src/pendulum/duration.py

@@ -242,7 +242,6 @@ def in_words(
         self,
         locale: str | None = None,
         separator: str = " ",
-        seconds_n_decimal: int = 2,
     ) -> str:
         """
         Get the current interval in words in the current locale.
@@ -251,9 +250,6 @@ def in_words(
 
         :param locale: The locale to use. Defaults to current locale.
         :param separator: The separator to use between each unit
-        :param kwargs: Additional keyword arguments.
-        - seconds_n_decimal (int): The number of decimal places to use for seconds if no other time units are present. Defaults to 2.
-
         """
         intervals = [
             ("year", self.years),
@@ -281,10 +277,11 @@ def in_words(
 
         if not parts:
             count: int | str = 0
-            unit = f"units.second.{loaded_locale.plural(0)}"
+            unit: str
             if self.microseconds != 0:
+                unit = f"units.second.{loaded_locale.plural(0)}"
                 microseconds = abs(self.microseconds) / 1e6
-                count = str({round(microseconds, ndigits=seconds_n_decimal)})
+                count = f"{abs(self.microseconds) / 1e6:.2f}"
             else:
                 unit = f"units.microsecond.{loaded_locale.plural(0)}"
             translation = loaded_locale.translation(unit)