# API

```@docs
SciMLStructures
SciMLStructures.isscimlstructure
SciMLStructures.ismutablescimlstructure
SciMLStructures.hasportion
SciMLStructures.canonicalize
SciMLStructures.replace
SciMLStructures.replace!
SciMLStructures.AbstractPortion
SciMLStructures.Tunable
SciMLStructures.Constants
SciMLStructures.Caches
SciMLStructures.Discrete
SciMLStructures.Initials
SciMLStructures.Input
```
