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

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

linopy/io.py

@@ -311,7 +311,13 @@ def integers_to_file(
         f.writelines(batch)
 
 
-def to_lp_file(m: Model, fn: Path, integer_label: str, slice_size: int = 10_000_000, log: bool=None) -> None:
+def to_lp_file(
+    m: Model,
+    fn: Path,
+    integer_label: str,
+    slice_size: int = 10_000_000,
+    log: bool = None,
+) -> None:
     batch_size = 5000
 
     with open(fn, mode="w") as f:
@@ -557,7 +563,9 @@ def constraints_to_file_polars(m, f, log=False, lazy=False, slice_size=2_000_000
             # formatted.sink_csv(f,  **kwargs)
 
 
-def to_lp_file_polars(m, fn, integer_label="general", slice_size=2_000_000, log: bool=None):
+def to_lp_file_polars(
+    m, fn, integer_label="general", slice_size=2_000_000, log: bool = None
+):
     with open(fn, mode="wb") as f:
         start = time.time()
 
@@ -579,7 +587,7 @@ def to_file(
     io_api: str | None = None,
     integer_label: str = "general",
     slice_size: int = 2_000_000,
-    log = None,
+    log=None,
 ) -> Path:
     """
     Write out a model to a lp or mps file.