[GitHub] [arrow] vibhatha commented on a diff in pull request #12590: ARROW-15639 [C++][Python] UDF Scalar Function Implementation

[GitBox]

vibhatha commented on code in PR #12590:
URL: https://github.com/apache/arrow/pull/12590#discussion_r854121180


##########
python/pyarrow/includes/libarrow.pxd:
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@@ -1840,6 +1842,36 @@ cdef extern from "arrow/compute/api.h" namespace 
"arrow::compute" nogil:
         int num_args
         c_bool is_varargs
 
+        CArity()
+        CArity(int num_args, c_bool is_varargs)
+
+        @staticmethod
+        CArity Nullary()
+
+        @staticmethod
+        CArity Unary()
+
+        @staticmethod
+        CArity Binary()
+
+        @staticmethod
+        CArity Ternary()
+
+        @staticmethod
+        CArity VarArgs(int min_args)

Review Comment:
   Yes you’re right. We settled for the constructor. 



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