From ef0a4476a7ebebc3cd6a0eec4aa91b46323eb2b3 Mon Sep 17 00:00:00 2001
From: Natercio Moniz <natercio.moniz@gmail.com>
Date: Mon, 24 Nov 2025 12:17:32 +0000
Subject: [PATCH] add Nature type

---
 internal/nature.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 internal/nature.go

diff --git a/internal/nature.go b/internal/nature.go
new file mode 100644
index 0000000..2b757c4
--- /dev/null
+++ b/internal/nature.go
@@ -0,0 +1,15 @@
+package internal
+
+type Nature string
+
+const (
+	// NatureUnknown is the zero value of Nature type
+	NatureUnknown Nature = ""
+
+	// NatureG01 describes selling of stocks per table VII: Alienação onerosa de ações/partes sociais
+	NatureG01 Nature = "G01"
+
+	// NatureG20 describes selling units in investment funds (including ETFs) as per table VII:
+	// Resgates ou alienação de unidades de participação ou liquidação de fundos de investimento
+	NatureG20 Nature = "G20"
+)