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Multiple scopes are not supported.`);\n      return false;\n    }\n\n    const result = Boolean(process.env.MSI_ENDPOINT);\n    if (!result) {\n      logger.info(`${msiName}: Unavailable. The environment variable MSI_ENDPOINT is needed.`);\n    }\n    return result;\n  },\n  async getToken(\n    configuration: MSIConfiguration,\n    getTokenOptions: GetTokenOptions = {}\n  ): Promise<AccessToken | null> {\n    const { identityClient, scopes, clientId, resourceId } = configuration;\n\n    if (clientId) {\n      logger.warning(\n        `${msiName}: user-assigned identities not supported. The argument clientId might be ignored by the service.`\n      );\n    }\n\n    if (resourceId) {\n      logger.warning(\n        `${msiName}: user defined managed Identity by resource Id not supported. The argument resourceId might be ignored by the service.`\n      );\n    }\n\n    logger.info(\n      `${msiName}: Using the endpoint coming form the environment variable MSI_ENDPOINT = ${process.env.MSI_ENDPOINT}.`\n    );\n\n    const request = createPipelineRequest({\n      abortSignal: getTokenOptions.abortSignal,\n      ...prepareRequestOptions(scopes, clientId, resourceId),\n      // Generally, MSI endpoints use the HTTP protocol, without transport layer security (TLS).\n      allowInsecureConnection: true,\n    });\n    const tokenResponse = await identityClient.sendTokenRequest(request);\n    return (tokenResponse && tokenResponse.accessToken) || null;\n  },\n};\n"]}