julia> using MLJBase

julia> import MLJModelInterface as MMI

julia> X = (; x1=ones(3), x2=ones(3), x3=ones(3));

julia> MMI.selectcols(X, MMI.schema(X).names)  # Fails
ERROR: MethodError: no method matching _selectcols(::MLJModelInterface.FullInterface, ::Val{…}, ::@NamedTuple{…}, ::Tuple{…})
The function `_selectcols` exists, but no method is defined for this combination of argument types.

Closest candidates are:
  _selectcols(::Union{MLJModelInterface.FullInterface, MLJModelInterface.LightInterface}, ::Val{:other}, ::Any, ::Any)
   @ MLJModelInterface ~/.julia/packages/MLJModelInterface/y9x5A/src/data_utils.jl:381
  _selectcols(::Union{MLJModelInterface.FullInterface, MLJModelInterface.LightInterface}, ::Val{:other}, ::Nothing, ::Any)
   @ MLJModelInterface ~/.julia/packages/MLJModelInterface/y9x5A/src/data_utils.jl:379
  _selectcols(::Union{MLJModelInterface.FullInterface, MLJModelInterface.LightInterface}, ::Val{:other}, ::AbstractMatrix, ::Any)
   @ MLJModelInterface ~/.julia/packages/MLJModelInterface/y9x5A/src/data_utils.jl:377
  ...

Stacktrace:
 [1] selectcols(m::MLJModelInterface.FullInterface, v::Val{…}, X::@NamedTuple{…}, r::Tuple{…})
   @ MLJModelInterface ~/.julia/packages/MLJModelInterface/y9x5A/src/data_utils.jl:374
 [2] selectcols(X::@NamedTuple{x1::Vector{…}, x2::Vector{…}, x3::Vector{…}}, c::Tuple{Symbol, Symbol, Symbol})
   @ MLJModelInterface ~/.julia/packages/MLJModelInterface/y9x5A/src/data_utils.jl:370
 [3] top-level scope
   @ REPL[12]:1
Some type information was truncated. Use `show(err)` to see complete types.

julia> MMI.selectcols(X, collect(MMI.schema(X).names))  # Works
(x1 = [1.0, 1.0, 1.0],
 x2 = [1.0, 1.0, 1.0],
 x3 = [1.0, 1.0, 1.0],)