done

lib/python3.11/site-packages/narwhals/_ibis/expr_struct.py

@@ -0,0 +1,19 @@
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from narwhals._compliant import LazyExprNamespace
+from narwhals._compliant.any_namespace import StructNamespace
+
+if TYPE_CHECKING:
+    import ibis.expr.types as ir
+
+    from narwhals._ibis.expr import IbisExpr
+
+
+class IbisExprStructNamespace(LazyExprNamespace["IbisExpr"], StructNamespace["IbisExpr"]):
+    def field(self, name: str) -> IbisExpr:
+        def func(expr: ir.StructColumn) -> ir.Column:
+            return expr[name]
+
+        return self.compliant._with_callable(func).alias(name)