Something wrong with some control constructors?

[ablaom]

julia> f(x) = true
f (generic function with 1 method)

julia> WithTrainingLossesDo(f)
WithTrainingLossesDo{typeof(f)}(f, false, nothing)

julia> WithTrainingLossesDo(f=f)
WithTrainingLossesDo{typeof(f)}(f, false, nothing)

julia> WithTrainingLossesDo(f=f, stop_if_true=true)
ERROR: MethodError: no method matching WithTrainingLossesDo(::typeof(f), ::Pair{Symbol, Bool})     
Closest candidates are:
  WithTrainingLossesDo(::Function; stop_if_true, stop_message) at /Users/anthony/.julia/packages/IterationControl/lO4bA/src/controls.jl:335
  WithTrainingLossesDo(::F, ::Bool, ::Union{Nothing, String}) where F<:Function at /Users/anthony/.julia/packages/IterationControl/lO4bA/src/controls.jl:327
Stacktrace:
 [1] WithTrainingLossesDo(; f::Function, kwargs::Base.Iterators.Pairs{Symbol, Bool, Tuple{Symbol}, NamedTuple{(:stop_if_true,), Tuple{Bool}}})                   
   @ IterationControl ~/.julia/packages/IterationControl/lO4bA/src/controls.jl:336
 [2] top-level scope
   @ REPL[119]:1
 [3] top-level scope
   @ ~/.julia/packages/CUDA/nYggH/src/initialization.jl:52

According to doc-string:

  WithTrainingLossesDo(f=v->@info("training: $v"), stop_if_true=false, stop_message=nothing)

  An iteration control, as in, WithTrainingLossesDo(v->put!(my_losses, last(v)).

  Call f(training_losses), where training_losses is the vector of most recent batch of
  training losses.

  If stop_if_true is true, then trigger an early stop if the value returned by f is true,
  logging the stop_message if specified.