# macros

Source: https://www.tensorplay.cn/docs/generated/tensorplay.distributed.elastic.utils.macros.html

```python
class tensorplay.distributed.elastic.utils.macros
```

Substitution variables usable in worker argument templates.

Any ${field} token inside the worker argument list is replaced with
the concrete value for the worker being launched. Supported fields are
the entries of fields.

```python
classmethod substitute(args: list[str], local_rank: str | None = None) → list[str]
```

Replace ${field} tokens in args; unknown tokens are kept.

```python
classmethod to_map() → dict[str, str]
```

Current macro values from the running process’ environment.