# `RequestSeal.StructuredFields.Error`
[🔗](https://github.com/baselabs/request_seal/blob/v0.5.2/lib/request_seal/structured_fields/error.ex#L1)

Bounded Structured Fields errors, containing no input bytes.

`:syntax` means malformed wire input; `:invalid_value` means an invalid value
supplied for serialization. `:revision_type` rejects a type unavailable in the
explicitly selected RFC revision; `:schema_type` rejects a field's disallowed
item, inner-list, or parameter type. `:limit` means a documented bound was
exceeded. `:invalid_schema` and `:invalid_limits` reject invalid configuration.
`:invalid_message`, `:invalid_field`, `:missing_field`, and
`:unavailable_section` identify field capture failures. No partial parse is
returned on failure. `:duplicate_key` means a dictionary key required to be
unique (the `:unique_keys` option of `RequestSeal.StructuredFields.parse_field/5`,
also used by the library's own field policies) repeats before deduplication.
`:duplicate_parameter` rejects repeated parameter names when uniqueness is
required (the `:unique_parameters` option of the same function, also used by
the signature parsing policy).

# `t`

```elixir
@type t() :: %RequestSeal.StructuredFields.Error{reason: atom()}
```

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