diff --git a/Swift/blocks/class/fields-initialization-from-decoder.twig b/Swift/blocks/class/fields-initialization-from-decoder.twig
new file mode 100644
index 0000000..8f0ca4e
--- /dev/null
+++ b/Swift/blocks/class/fields-initialization-from-decoder.twig
@@ -0,0 +1,5 @@
+{%- import '../../macroses/common.utils.twig' as utils -%}
+    let container = try decoder.container(keyedBy: CodingKeys.self)
+    {%- for field in fields %}
+        {{ field.name }} = {{ utils.formatNullableOrOptional("try", field.nullable, field.optional) }} container.decode({{ utils.formatValueType(field.type.type) }}.self, forKey: .{{ field.name }})
+    {%- endfor -%}