# `BB.Dsl.Verifiers.ValidateParamRefs`
[🔗](https://github.com/beam-bots/bb/blob/main/lib/bb/dsl/verifiers/validate_param_refs.ex#L5)

Validates that parameter references in the DSL refer to valid parameters.

For each `param([:path, :to, :param])` in the topology, this verifier checks:
1. The parameter path exists in the parameters section
2. The parameter's unit type is compatible with the expected type at that DSL location

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