This section is for Julia package developers who may want to use the simplify and rule rewriting system on their own expression types.
SymbolicUtils matchers can match any Julia object that implements an interface to traverse it as a tree. The interface in question, is defined in the TermInterface.jl package. Its purpose is to provide a shared interface between various symbolic programming Julia packages.
In particular, you should define methods from TermInterface.jl for an expression tree type T with symbol types S to work with SymbolicUtils.jl
You can read the documentation of TermInterface.jl on the Github repository.
powered.promote_symtype(f, arg_symtypes...)Returns the appropriate output type of applying f on arguments of type arg_symtypes.