# File lib/ftw/http/message.rb, line 102
  def version=(ver)
    # Accept string "1.0" or simply "1", etc.
    ver = ver.to_f if !ver.is_a?(Float)

    if !VALID_VERSIONS.include?(ver)
      raise UnsupportedHTTPVersion.new("#{self.class.name}#version = #{ver.inspect} is" \
        "invalid. It must be a number, one of #{VALID_VERSIONS.join(", ")}")
    end
    @version = ver
  end