def list_by_vaults(resource_group_name, vault_name, custom_headers:nil)
      response = list_by_vaults_async(resource_group_name, vault_name, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end
def list_by_vaults(resource_group_name, vault_name, custom_headers:nil)
      response = list_by_vaults_async(resource_group_name, vault_name, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end
Fetches the usages of the vault.

 @param resource_group_name [String] The name of the resource group where the
 recovery services vault is present.
 @param vault_name [String] The name of the recovery services vault.
 @param custom_headers [Hash{String => String}] A hash of custom headers that
 will be added to the HTTP request.

 @return [VaultUsageList] operation results.