add human_name to MODEL_TRAITS and metadata_model

Author: ablaom

src/MLJModelInterface.jl

@@ -20,6 +20,7 @@ const MODEL_TRAITS = [
     :supports_online,
     :docstring,
     :name,
+    :human_name,
     :is_supervised,
     :prediction_type,
     :abstract_type,

src/metadata_utils.jl

@@ -110,6 +110,7 @@ function metadata_model(
     supports_class_weights::Union{Nothing,Bool}=weights,
     docstring::Union{Nothing,String}=descr,
     load_path::Union{Nothing,String}=path,
+    human_name::Union{Nothing,String}=nothing
 )
 
     load_path === nothing && @warn WARN_MISSING_LOAD_PATH
@@ -126,6 +127,7 @@ function metadata_model(
     _extend!(program, :supports_class_weights,supports_class_weights, T)
     _extend!(program, :docstring, docstring, T)
     _extend!(program, :load_path, load_path, T)
+    _extend!(program, :human_name, human_name, T)
 
     parentmodule(T).eval(program)
 end

test/metadata_utils.jl

@@ -51,6 +51,7 @@ infos =  Dict(trait => eval(:(MLJModelInterface.$trait))(FooRegressor) for
     @test !infos[:supports_online]
     @test infos[:docstring] == "Cool model\n"
     @test infos[:name] == "FooRegressor"
+    @test infos[:human_name] == "foo regressor"
     @test infos[:is_supervised]
     @test infos[:prediction_type] == :deterministic
     @test infos[:implemented_methods] == [:clean!]