// Instead, we can wrap the backoff hook to log/increment metrics before returning the backoff result.
func wrapBackoffWithMetrics(bf retry.BackoffFunc) retry.BackoffFunc {
	return func(attempt uint) time.Duration {
		wait := bf(attempt)
		caLog.Warnf("ca request failed, starting attempt %d in %v", attempt, wait)
		monitoring.NumOutgoingRetries.With(monitoring.RequestType.Value(monitoring.CSR)).Increment()

000000a0  81 00 ba 6f aa 86 bd cf  bf 9f f2 ef 5c 94 60 78  |...o........\.`x|
000000b0  6f e8 13 f2 d1 96 6f cd  d9 32 6e 22 37 ce 41 f9  |o.....o..2n"7.A.|
000000c0  ca 5d 29 ac e1 27 da 61  a2 ee 81 cb 10 c7 df 34  |.])..'.a.......4|
000000d0  58 95 86 e9 3d 19 e6 5c  27 73 60 c8 8d 78 02 f4  |X...=..\'s`..x..|
000000e0  1d a4 98 09 a3 19 70 69  3c 25 62 66 2a ab 22 23  |......pi<%bf*."#|

00000170  75 65 49 e4 df cd 87 7c  ab c9 7d 0c 1c ed b0 08  |ueI....|..}.....|
00000180  c7 ba 08 2d a7 26 75 80  1d 1d 0c 7f 01 15 6f 82  |...-.&u.......o.|
00000190  bf 5a a3 84 cd ac 91 56  cb d2 17 78 a5 b0 22 bf  |.Z.....V...x..".|
000001a0  d2 f3 1e 9f 8f f7 66 b7  a0 ec 28 f1 c5 b6 4e 24  |......f...(...N$|
000001b0  63 46 88 d2 7a 84 11 8e  ce 5d ab 5f e7 81 7d a5  |cF..z....]._..}.|

000003e0  0e 65 d4 7e 8d 18 58 b0  3c 18 97 35 0e 73 bf d0  |.e.~..X.<..5.s..|
000003f0  65 dc 63 d7 e6 51 f6 52  75 22 f0 cf f7 70 1e ae  |e.c..Q.Ru"...p..|
00000400  cd 4c fb 1e 21 97 ea db  07 36 8a d3 17 03 03 00  |.L..!....6......|
00000410  8b 73 a1 d3 6c f8 7d d5  c0 79 dc 30 e4 40 f8 2a  |.s..l.}..y.0.@.*|
00000420  60 57 69 61 b9 cb 81 9f  de 74 7c c1 ee d2 bd f5  |`Wia.....t|.....|

000000a0  81 00 ba 6f aa 86 bd cf  bf 9f f2 ef 5c 94 60 78  |...o........\.`x|
000000b0  6f e8 13 f2 d1 96 6f cd  d9 32 6e 22 37 ce 41 f9  |o.....o..2n"7.A.|
000000c0  ca 5d 29 ac e1 27 da 61  a2 ee 81 cb 10 c7 df 34  |.])..'.a.......4|
000000d0  58 95 86 e9 3d 19 e6 5c  27 73 60 c8 8d 78 02 f4  |X...=..\'s`..x..|
000000e0  1d a4 98 09 a3 19 70 69  3c 25 62 66 2a ab 22 23  |......pi<%bf*."#|

000001a0  02 f7 f5 9f cb 31 1e 89  e4 5d a0 e9 34 db be 28  |.....1...]..4..(|
000001b0  51 15 68 54 01 7c e5 1d  b4 05 d2 d6 24 ca 10 69  |Q.hT.|......$..i|
000001c0  31 bf 8b 7a ee d9 bf e1  2a d4 7c c8 e8 79 ca dd  |1..z....*.|..y..|
000001d0  0f 73 09 c8 cf 97 28 78  04 5b 04 51 44 c4 5f d1  |.s....(x.[.QD._.|
000001e0  dc da 4f f5 d9 5c 9c b1  ea f8 1b f7 43 90 c0 c0  |..O..\......C...|

>>> Flow 1 (client to server)
00000000  16 03 01 00 51 01 00 00  4d 03 01 5e bf ff e7 c2  |....Q...M..^....|
00000010  c1 98 4a a3 cf 5a e8 8d  8f 19 9e 85 48 5b 92 cc  |..J..Z......H[..|
00000020  7d 0c 14 1e 2e 50 5b d7  dd fe ef 00 00 04 c0 0a  |}....P[.........|
00000030  00 ff 01 00 00 20 00 0b  00 04 03 00 01 02 00 0a  |..... ..........|
00000040  00 0c 00 0a 00 1d 00 17  00 1e 00 19 00 18 00 16  |................|

000000a0  00 00 00 00 00 8b 6c 27  b8 ff f9 ea ca 68 75 54  |......l'.....huT|
000000b0  bf bf a7 f4 b1 58 a5 b3  31 01 4d c7 85 58 31 d4  |.....X..1.M..X1.|

>>> Flow 1 (client to server)
00000000  16 03 01 00 6d 01 00 00  69 03 03 8a fe ad ad 75  |....m...i......u|
00000010  e4 8c bf bf b7 b6 66 14  92 eb 84 85 9c c8 a7 66  |......f........f|
00000020  04 2a d0 63 5e a6 bf 85  e9 4f 49 00 00 04 00 2f  |.*.c^....OI..../|
00000030  00 ff 01 00 00 3c 00 16  00 00 00 17 00 00 00 0d  |.....<..........|
00000040  00 30 00 2e 04 03 05 03  06 03 08 07 08 08 08 09  |.0..............|

>>> Flow 3 (client to server)
00000000  16 03 03 00 86 10 00 00  82 00 80 cc 4e 62 e0 bf  |............Nb..|
00000010  21 65 dc f2 57 fb fe 6e  e4 cc de b4 1f aa af 52  |!e..W..n.......R|
00000020  a4 e0 0e 1b fa 8b 23 4b  d9 e2 4b 62 6a 26 80 f7  |......#K..Kbj&..|
00000030  15 82 ba 44 4a 18 b8 97  ca a1 79 4b 11 59 90 7d  |...DJ.....yK.Y.}|
00000040  ea 89 7c f9 6b 5f 29 c7  ca 32 bf 3b 53 b2 bb bb  |..|.k_)..2.;S...|