# `Reach.Evidence.Impact`
[🔗](https://github.com/elixir-vibe/reach/blob/v2.8.4/lib/reach/evidence/impact.ex#L1)

Reusable call-graph impact evidence for target-local analyses and checks.

# `callers`

```elixir
@spec callers(
  Reach.Project.t(),
  {module(), atom(), non_neg_integer()},
  non_neg_integer()
) :: [
  {module() | nil, atom(), non_neg_integer()}
]
```

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*Consult [api-reference.md](api-reference.md) for complete listing*