# File lib/cucumber/step_mother.rb, line 227
      def step(statement, multiline_arg, result)
        cucumber_multiline_arg = case(multiline_arg)
        when Gherkin::Formatter::Model::PyString
          multiline_arg.value
        when Array
          Ast::Table.new(multiline_arg.map{|row| row.cells})
        else
          nil
        end
        @step_mother.invoke(*[statement.name, cucumber_multiline_arg].compact) 
      end