сборка кода для создания слоя лямбда - не удается найти модули

Question

{
    "errorType": "Error",
    "errorMessage": "Cannot find module 'pg'\nRequire stack:\n- /var/task/index.js\n- /var/runtime/UserFunction.js\n- /var/runtime/index.js",
    "trace": [
        "Error: Cannot find module 'pg'",
        "Require stack:",
        "- /var/task/index.js",
        "- /var/runtime/UserFunction.js",
        "- /var/runtime/index.js",
        "    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:982:15)",
        "    at Function.Module._load (internal/modules/cjs/loader.js:864:27)",
        "    at Module.require (internal/modules/cjs/loader.js:1044:19)",
        "    at require (internal/modules/cjs/helpers.js:77:18)",
        "    at getAllReports (/var/task/index.js:82:21)",
        "    at Runtime.exports.handler (/var/task/index.js:23:5)",
        "    at Runtime.handleOnce (/var/runtime/Runtime.js:66:25)",
        "    at runNextTicks (internal/process/task_queues.js:62:5)",
        "    at processImmediate (internal/timers.js:429:9)"
    ]
}