How to read file relative to the current file in 1 line in Python

fla_configuration = {
            "OrgSlug": "sparktx1",
            "AgentId": "00000000-0000-0000-0000-0000sparktx1",
            "Paths": [
                json.dumps(
                    Path(__file__, "..", "paths/path1.json").resolve().read_text(),
                ),
            ],
        }

Tree:

.
├── app
│   ├── __init__.py
│   ├── main.py
├── requirements.txt
└── tests
    ├── __init__.py
    ├── paths
    │   ├── path1.json
    │   ├── path2.json
    │   └── path3.json
    └── test_main.py