module SyntaxTree::DSL

def DefNode(

Create a new DefNode node. 
def DefNode(
  target,
  operator,
  name,
  params,
  bodystmt,
  location = Location.default
)
  DefNode.new(
    target: target,
    operator: operator,
    name: name,
    params: params,
    bodystmt: bodystmt,
    location: location
  )
end