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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"list_instances is not returning expected Instance type","articleBody":"I'm migrating from 1.9 to 3.1 and I noticed that the `list_instances()` method used to return type [Instance](https://googleapis.dev/python/spanner/latest/instance-api.html#google.cloud.spanner_v1.instance.Instance)\u003cgoogle.cloud.spanner_v1.instance.Instance\u003e but with the latest it actually returns the [spanner admin instance](https://github.com/googleapis/python-spanner/blob/master/google/cloud/spanner_admin_instance_v1/types/spanner_instance_admin.py#L106)\u003cgoogle.cloud.spanner_admin_instance_v1.types.spanner_instance_admin.Instance\u003e which does not have the `instance_id`.  Thus I now get an AttributeError.\r\n\r\nI'm unsure if this is a bug or if the [documentation](https://googleapis.dev/python/spanner/latest/client-api.html#google.cloud.spanner_v1.client.Client.list_instances) just hasn't been updated.","author":{"url":"https://github.com/gzamb","@type":"Person","name":"gzamb"},"datePublished":"2021-03-09T00:44:17.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/257/python-spanner/issues/257"}