{
    "Function": "tryAsPromiseCallback",
    "File": "contracts/contracts/core/promise/libraries/PromiseMessage.sol",
    "Parent Contracts": [],
    "High-Level Calls": [
        "TypedMemView",
        "TypedMemView"
    ],
    "Internal Calls": [
        "isValidPromiseCallbackLength"
    ],
    "Library Calls": [
        "castTo",
        "nullView"
    ],
    "Low-Level Calls": [],
    "Code": "function tryAsPromiseCallback(bytes29 _view) internal pure returns (bytes29) {\n    if (isValidPromiseCallbackLength(_view)) {\n      return _view.castTo(uint40(Types.PromiseCallback));\n    }\n    return TypedMemView.nullView();\n  }"
}