Introduce register_interop_behavior method

Author: horakivo

graalpython/lib-graalpython/modules/_polyglot_arrow.py

@@ -43,7 +43,8 @@
 try:
     java.type("org.apache.arrow.vector.BaseFixedWidthVector")
 except KeyError:
-    raise ImportError("It is not possible to import Apache Arrow Vector classes because arrow-vector package is not on the class path. Please add this library to your project.")
+    raise ImportError(
+        "It is not possible to import Apache Arrow Vector classes because arrow-vector package is not on the class path. Please add this library to your project.")
 
 if not __graalpython__.host_import_enabled:
     raise NotImplementedError("Host lookup is not allowed. You can allow it while building python context.")
@@ -120,6 +121,7 @@ def __arrow_c_array__(self, requested_schema=None):
             return __graalpython__.export_arrow_vector(self)
 
 
+def register_interop_behavior():
     # Ints
     int8_vector_class_path = java.type("org.apache.arrow.vector.TinyIntVector")
     int16_vector_class_path = java.type("org.apache.arrow.vector.SmallIntVector")
@@ -141,4 +143,4 @@ def __arrow_c_array__(self, requested_schema=None):
 
     polyglot.register_interop_type(float2_vector_class_path, Float2Vector)
     polyglot.register_interop_type(float4_vector_class_path, Float4Vector)
-    polyglot.register_interop_type(float8_vector_class_path, Float8Vector)
+    polyglot.register_interop_type(float8_vector_class_path, Float8Vector)