[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

linopy/io.py

@@ -330,8 +330,12 @@ def to_lp_file(
         constraints_to_file(
             m, f=f, progress=progress, batch_size=batch_size, slice_size=slice_size
         )
-        bounds_to_file(m, f=f, progress=progress, batch_size=batch_size, slice_size=slice_size)
-        binaries_to_file(m, f=f, progress=progress, batch_size=batch_size, slice_size=slice_size)
+        bounds_to_file(
+            m, f=f, progress=progress, batch_size=batch_size, slice_size=slice_size
+        )
+        binaries_to_file(
+            m, f=f, progress=progress, batch_size=batch_size, slice_size=slice_size
+        )
         integers_to_file(
             m,
             integer_label=integer_label,
@@ -574,7 +578,11 @@ def to_lp_file_polars(
         bounds_to_file_polars(m, f=f, progress=progress, slice_size=slice_size)
         binaries_to_file_polars(m, f=f, progress=progress, slice_size=slice_size)
         integers_to_file_polars(
-            m, integer_label=integer_label, f=f, progress=progress, slice_size=slice_size
+            m,
+            integer_label=integer_label,
+            f=f,
+            progress=progress,
+            slice_size=slice_size,
         )
         f.write(b"end\n")
 
@@ -608,7 +616,9 @@ def to_file(
     if io_api == "lp":
         to_lp_file(m, fn, integer_label, slice_size=slice_size, progress=progress)
     elif io_api == "lp-polars":
-        to_lp_file_polars(m, fn, integer_label, slice_size=slice_size, progress=progress)
+        to_lp_file_polars(
+            m, fn, integer_label, slice_size=slice_size, progress=progress
+        )
 
     elif io_api == "mps":
         if "highs" not in solvers.available_solvers: