class Steep::Diagnostic::Ruby::InsufficientTypeArgument

def header_line
  "Requires #{method_type.type_params.size} types, but #{type_args.size} given: `#{method_type.to_s}`"
end

def initialize(node:, type_args:, method_type:)
  super(node: node)
  @type_args = type_args
  @method_type = method_type
end