A [*struct payload*][struct-doc-link] is a FIDL method payload that uses the
`struct` layout. The `struct` is a simple sequence of typed fields, similar to
how C structs work.

<<../examples/calculator/_callout.md>>
<<../examples/calculator/_baseline_tutorial.md>>

[struct-doc-link]: /docs/reference/fidl/language/language.md#structs