"Nested" type is not being respected, instead gets created as object

[prudhvi2519]

When an attribute of type "nested" is included in the mapping, the index is created successfully. However, in OpenSearch, the mapping for this attribute is displayed as "object" instead of "nested."

Conversely, when the same mapping is executed via the Elasticsearch DevTools console, the index is created correctly, and the nested type is applied as expected.