http instance methods

irb(main):016:0> res = Net::HTTP.post_form(url, {:hello => "world"})
=> #<Net::HTTPOK 200 OK  readbody=true>
irb(main):024:0> pp (res.methods - Object.methods).sort
["[]",
 "[]=",
 "add_field",
 "basic_auth",
 "body",
 "canonical_each",
 "chunked?",
 "code",
 "code_type",
 "content_length",
 "content_length=",
 "content_range",
 "content_type",
 "content_type=",
 "delete",
 "each",
 "each_capitalized",
 "each_capitalized_name",
 "each_header",
 "each_key",
 "each_name",
 "each_value",
 "entity",
 "error!",
 "error_type",
 "fetch",
 "form_data=",
 "get_fields",
 "header",
 "http_version",
 "initialize_http_header",
 "key?",
 "length",
 "main_type",
 "message",
 "msg",
 "proxy_basic_auth",
 "range",
 "range=",
 "range_length",
 "read_body",
 "read_header",
 "reading_body",
 "response",
 "set_content_type",
 "set_form_data",
 "set_range",
 "size",
 "sub_type",
 "to_ary",
 "to_hash",
 "type_params",
 "value"]