def auth_tune(path)
      json = client.get("/v1/sys/auth/#{encode_path(path)}/tune")
      return AuthConfig.decode(json)
    rescue HTTPError => e
      return nil if e.code == 404
      raise
    end
def auth_tune(path)
      json = client.get("/v1/sys/auth/#{encode_path(path)}/tune")
      return AuthConfig.decode(json)
    rescue HTTPError => e
      return nil if e.code == 404
      raise
    end
Read the given auth path's configuration.

 @example
   Vault.sys.auth_tune("github") #=> #<Vault::AuthConfig "default_lease_ttl"=3600, "max_lease_ttl"=7200>

 @param [String] path
   the path to retrieve configuration for

 @return [AuthConfig]
   configuration of the given auth path