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

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python/taichi/lang/kernel_impl.py

@@ -20,7 +20,7 @@
 from taichi.lang.kernel_arguments import KernelArgument
 from taichi.lang.matrix import Matrix, MatrixType
 from taichi.lang.shell import _shell_pop_print, oinspect
-from taichi.lang.util import (has_paddle, has_pytorch, to_taichi_type)
+from taichi.lang.util import has_paddle, has_pytorch, to_taichi_type
 from taichi.types import (ndarray_type, primitive_types, sparse_matrix_builder,
                           template)