Package wire contains directives for Wire code generation. For an overview of working with Wire, see the user guide at https://github.com/google/wire/blob/master/docs/guide.md The directives in this package are used as input to the Wire code generation tool. The entry point of Wire's analysis are injector functions: function templates denoted by only containing a call to Build. The arguments to Build describes a set of providers and the Wire code generation tool builds a directed acylic graph of the providers' output types. The generated code will fill in the function template by using the providers from the provider set to instantiate any needed types.