Close is an optional part of the Terraform lifecycle for an ephemeral resource, which is different from the [managed resource lifecycle](https://github.com/hashicorp/terraform/blob/main/docs/resource-instance-change-lifecycle.md). During any Terraform operation (like [`terraform plan`](/terraform/cli/commands/plan) or [`terraform apply`](/terraform/cli/commands/apply)), when an ephemeral resource's data is needed, Terraform initially retrieves that data with the [`Open`](/terraform/plugin/framework/ephemeral-resources/open) lifecycle handler. Once the ephemeral resource data is no longer needed, Terraform calls the provider `CloseEphemeralResource` RPC, in which the framework calls the [`ephemeral.EphemeralResourceWithClose` interface `Close` method](https://pkg.go.dev/github.com/hashicorp/terraform-plugin-framework/ephemeral#EphemeralResourceWithClose). The request contains any `Private` data set in the latest `Open` or `Renew` call.
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