Update create_map implementation

src/snowflake/snowpark/functions.py

@@ -792,24 +792,16 @@ def create_map(*cols: Union[ColumnOrName, Union[List[ColumnOrName], Tuple[Column
         -----------------------
         <BLANKLINE>
     """
-    def pairwise(iterable):
-        while len(iterable):
-            a = iterable.pop(0)
-            b = iterable.pop(0) if len(iterable) else None
-            yield a, b
-
-    col_names = _flatten_col_list(cols)  # flatten any iterables to process them in pairs
-    has_odd_columns = len(col_names) & 1
+    if len(cols) == 1 and isinstance(cols[0], (list, set)):
+        cols = cols[0]
+
+    has_odd_columns = len(cols) & 1
     if has_odd_columns:
         raise ValueError(
-            f"The 'create_map' function requires an even number of parameters but the actual number is {len(col_names)}"
+            f"The 'create_map' function requires an even number of parameters but the actual number is {len(cols)}"
         )
 
-    col_list = []
-    for name, value in pairwise(col_names):
-        col_list.append(_to_col_if_str(name, "create_map"))
-        col_list.append(value)
-    return object_construct_keep_null(*col_list)
+    return object_construct_keep_null(*cols)
 
 
 def kurtosis(e: ColumnOrName) -> Column:
@@ -2375,8 +2367,18 @@ def struct(*cols: ColumnOrName) -> Column:
         ---------------------
         <BLANKLINE>
     """
+
+    def flatten_col_list(obj):
+        if isinstance(obj, str) or isinstance(obj, Column):
+            return [obj]
+        elif hasattr(obj, "__iter__"):
+            acc = []
+            for innerObj in obj:
+                acc = acc + flatten_col_list(innerObj)
+            return acc
+
     new_cols = []
-    for c in _flatten_col_list(cols):
+    for c in flatten_col_list(cols):
         # first insert field_name
         if isinstance(c, str):
             new_cols.append(lit(c))
@@ -2394,16 +2396,6 @@ def struct(*cols: ColumnOrName) -> Column:
     return object_construct_keep_null(*new_cols)
 
 
-def _flatten_col_list(obj):
-    if isinstance(obj, str) or isinstance(obj, Column):
-        return [obj]
-    elif hasattr(obj, "__iter__"):
-        acc = []
-        for innerObj in obj:
-            acc = acc + _flatten_col_list(innerObj)
-        return acc
-
-
 def log(
     base: Union[ColumnOrName, int, float], x: Union[ColumnOrName, int, float]
 ) -> Column: