public async Task Write(Arguments arguments, CancellationToken cancellationToken)
{
var profiles = await profileReader.ReadFiles(arguments.Inputs, cancellationToken);
var input = profiles.Concat(profileReader.ReadVariables(arguments.Variables));
var schemes = await profileReader.ReadFiles(arguments.Schemes, cancellationToken);
var usedNames = input.OfType <Payload>()
.Select(p => p.Name)
.Distinct()
.ToList();
await Task.WhenAll(
from scheme in treeBuilder.BuildScheme(schemes, usedNames).AsParallel()
from tree in treeBuilder.Build(input, scheme.GetSubstituteTypes())
from alteredScheme in treeBuilder.BuildScheme(
scheme.WithImplicitHiddenKeys(tree),
usedNames)
from pair in formatterBuilder.Build(alteredScheme)
from subTree in tree.GetSubTrees(pair.prefix) // RK TODO: Logging if no suitable subtrees.
select pair.formatter.Write(subTree, cancellationToken));
}