dynamo/lib/bindings/python/codegen/README.md

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# Dynamo Codegen
Python code generator for Dynamo Python bindings.
## gen-python-prometheus-names
Generates `prometheus_names.py` from Rust source `lib/runtime/src/metrics/prometheus_names.rs`.
### Usage
```bash
cargo run -p dynamo-codegen --bin gen-python-prometheus-names
```
### What it does
- Parses Rust AST from `lib/runtime/src/metrics/prometheus_names.rs`
- Generates Python classes with constants at `lib/bindings/python/src/dynamo/prometheus_names.py`
### Example
**Rust input:**
```rust
pub mod kvrouter {
pub const KV_CACHE_EVENTS_APPLIED: &str = "kv_cache_events_applied";
}
```
**Python output:**
```python
class kvrouter:
KV_CACHE_EVENTS_APPLIED = "kv_cache_events_applied"
```
### When to run
Run after modifying `lib/runtime/src/metrics/prometheus_names.rs` to regenerate the Python file.