From f9c4436bfb466e90860226c495c568cc9e83b9cb Mon Sep 17 00:00:00 2001
From: Matthew Treinish <mtreinish@kortar.org>
Date: Tue, 12 Apr 2022 10:11:21 -0400
Subject: [PATCH 1/4] Fix dag visualization for DAGCircuits without registers

This commit fixes the handling of generating visualizations for
DAGCircuit objects that have standalone bit objects. Previously, the
dag_drawer() function was assuming every bit in the dag was a member of
a register. In the case of circuits with standalone bits this is not the
case and would result in a KeyError being raised when the register was
attempted to be used to generate a string label for the node or edge
in the visualization. This fixes this by still using registers if
present, but in the absence of a register it fallsback to using it's
absolute index in the dag to generate a similar label. For example, the
4th qubit will have the label "q[4]" in the output visualization.

Fixes #7915
---
 qiskit/visualization/dag_visualization.py | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/qiskit/visualization/dag_visualization.py b/qiskit/visualization/dag_visualization.py
index 80a01e03a83..2e6ecde9d3b 100644
--- a/qiskit/visualization/dag_visualization.py
+++ b/qiskit/visualization/dag_visualization.py
@@ -21,6 +21,7 @@
 import tempfile
 
 from qiskit.dagcircuit.dagnode import DAGOpNode, DAGInNode, DAGOutNode
+from qiskit.circuit import Qubit
 from qiskit.utils import optionals as _optionals
 from qiskit.exceptions import InvalidFileError
 from .exceptions import VisualizationError
@@ -173,7 +174,9 @@ def node_attr_func(node):
         edge_attr_func = None
 
     else:
-        bit_labels = {
+        qubit_indices = {bit: index for index, bit in enumerate(dag.qubits)}
+        clbit_indices = {bit: index for index, bit in enumerate(dag.clbits)}
+        register_bit_labels = {
             bit: f"{reg.name}[{idx}]"
             for reg in list(dag.qregs.values()) + list(dag.cregs.values())
             for (idx, bit) in enumerate(reg)
@@ -192,12 +195,20 @@ def node_attr_func(node):
                     n["style"] = "filled"
                     n["fillcolor"] = "lightblue"
                 if isinstance(node, DAGInNode):
-                    n["label"] = bit_labels[node.wire]
+                    if isinstance(node.wire, Qubit):
+                        label = register_bit_labels.get(node.wire, f"q[{qubit_indices[node.wire]}]")
+                    else:
+                        label = register_bit_labels.get(node.wire, f"c[{clbit_indices[node.wire]}]")
+                    n["label"] = label
                     n["color"] = "black"
                     n["style"] = "filled"
                     n["fillcolor"] = "green"
                 if isinstance(node, DAGOutNode):
-                    n["label"] = bit_labels[node.wire]
+                    if isinstance(node.wire, Qubit):
+                        label = register_bit_labels.get(node.wire, f"q[{qubit_indices[node.wire]}]")
+                    else:
+                        label = register_bit_labels.get(node.wire, f"c[{clbit_indices[node.wire]}]")
+                    n["label"] = label
                     n["color"] = "black"
                     n["style"] = "filled"
                     n["fillcolor"] = "red"
@@ -207,7 +218,11 @@ def node_attr_func(node):
 
         def edge_attr_func(edge):
             e = {}
-            e["label"] = bit_labels[edge]
+            if isinstance(edge, Qubit):
+                label = register_bit_labels.get(edge, f"q[{qubit_indices[edge]}]")
+            else:
+                label = register_bit_labels.get(edge, f"c[{clbit_indices[edge]}]")
+            e["label"] = label
             return e
 
     dot_str = dag._multi_graph.to_dot(node_attr_func, edge_attr_func, graph_attrs)

From c8b7ecca74420f5c213cb31a0df9b306ecadb3f9 Mon Sep 17 00:00:00 2001
From: Matthew Treinish <mtreinish@kortar.org>
Date: Tue, 12 Apr 2022 12:29:29 -0400
Subject: [PATCH 2/4] Adjust default label from q[0] to q_0

This commit changes the default fallback label when no register match is
found to be of the form q_0, where 0 is the qubit index. This was done
to avoid potential confusion with a register named q which might be in
the circuit and not the first element in the qubits list.
---
 qiskit/visualization/dag_visualization.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/qiskit/visualization/dag_visualization.py b/qiskit/visualization/dag_visualization.py
index 2e6ecde9d3b..327f9f172de 100644
--- a/qiskit/visualization/dag_visualization.py
+++ b/qiskit/visualization/dag_visualization.py
@@ -196,9 +196,9 @@ def node_attr_func(node):
                     n["fillcolor"] = "lightblue"
                 if isinstance(node, DAGInNode):
                     if isinstance(node.wire, Qubit):
-                        label = register_bit_labels.get(node.wire, f"q[{qubit_indices[node.wire]}]")
+                        label = register_bit_labels.get(node.wire, f"q_{qubit_indices[node.wire]}")
                     else:
-                        label = register_bit_labels.get(node.wire, f"c[{clbit_indices[node.wire]}]")
+                        label = register_bit_labels.get(node.wire, f"c_{clbit_indices[node.wire]}")
                     n["label"] = label
                     n["color"] = "black"
                     n["style"] = "filled"
@@ -219,9 +219,9 @@ def node_attr_func(node):
         def edge_attr_func(edge):
             e = {}
             if isinstance(edge, Qubit):
-                label = register_bit_labels.get(edge, f"q[{qubit_indices[edge]}]")
+                label = register_bit_labels.get(edge, f"q_{qubit_indices[edge]}")
             else:
-                label = register_bit_labels.get(edge, f"c[{clbit_indices[edge]}]")
+                label = register_bit_labels.get(edge, f"c_{clbit_indices[edge]}")
             e["label"] = label
             return e
 

From ab9c792f368665a101c9bc699b29820f9c414732 Mon Sep 17 00:00:00 2001
From: Matthew Treinish <mtreinish@kortar.org>
Date: Tue, 12 Apr 2022 12:33:16 -0400
Subject: [PATCH 3/4] Add release note

---
 .../notes/fix-dag-drawer-no-reg-6eee9d1f6e4b9261.yaml    | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 releasenotes/notes/fix-dag-drawer-no-reg-6eee9d1f6e4b9261.yaml

diff --git a/releasenotes/notes/fix-dag-drawer-no-reg-6eee9d1f6e4b9261.yaml b/releasenotes/notes/fix-dag-drawer-no-reg-6eee9d1f6e4b9261.yaml
new file mode 100644
index 00000000000..390834dea04
--- /dev/null
+++ b/releasenotes/notes/fix-dag-drawer-no-reg-6eee9d1f6e4b9261.yaml
@@ -0,0 +1,9 @@
+---
+fixes:
+  - |
+    Fixed an issue with the visualization function :func:`~.dag_drawer` and the
+    :meth:`.DAGCircuit.draw` method where previously the drawer would fail
+    when attempting to generate a visualization for a :class:`~.DAGCircuit`
+    object that contained a :class:`~.Qubit` or :class:`~.Clbit` which wasn't
+    part of a :class:`~QuantumRegister` or :class:`~ClassicalRegister`.
+    Fixed `#7915 <https://github.com/Qiskit/qiskit-terra/issues/7915>`__

From b324e51464eee1061a739559988989a3217d5ba8 Mon Sep 17 00:00:00 2001
From: Matthew Treinish <mtreinish@kortar.org>
Date: Tue, 12 Apr 2022 13:04:05 -0400
Subject: [PATCH 4/4] Add test

---
 .../visualization/references/dag_no_reg.png   | Bin 0 -> 16758 bytes
 test/python/visualization/test_dag_drawer.py  |  27 ++++++++++++++++--
 2 files changed, 24 insertions(+), 3 deletions(-)
 create mode 100644 test/python/visualization/references/dag_no_reg.png

diff --git a/test/python/visualization/references/dag_no_reg.png b/test/python/visualization/references/dag_no_reg.png
new file mode 100644
index 0000000000000000000000000000000000000000..48f7324b5230e80f27487ffd55247e1cb1fe0a87
GIT binary patch
literal 16758
zcmai+WmuJ6(C<MWX+%k-yGy!3y1TnOq`N`7B&Ab8x<R_TTe`cu-^F{b^YL5<Kfu0(
zd*Ao0nOQTx`L7)+CnJgkj|C3_0f8hgCZqtqhe1F<Qo=%mpQK#>#(;0o29lye5U+3l
zvRVq_ARq`J#D%^oxuzYbyST<FKlbs-PCAmBBhZdd3Yag*-Jlo`#;AKK|F?_$pWQly
z5E^D!1OLZwLNS<f{E(2}c8ZTki>q#bmwYgz)HaWMycNx=ll#Y<D=x{~l5uDuGun_j
zWt+Jh@tBqy60+7S-JzwzvG|US6slfsNi9&+4kIxkp{LTYkKOBm8IxXTtFs4z#FQj1
zBT>e}gv$7NC`aDBP_2xpqoYIVk5Z^ct%ZE6=lurrlr%5962<xX`P22BZppufuxrg(
zhx;pI&*FQcSOFC?40H6!ESj}+YIzh_t;=@PHe@_ZZU!9IEF&r*mdG5<LmNl4IX?_q
zjVzU7T=T!Fi*iTH$<i`1JG&fwOkOXJQFxqTqA<t`|9<mZW|7T`Ut(22F=Mmbm7NQZ
z!t;3CY~}Cj<R}-b+%T_7zi5dZb)RqcZSP}dV5}18PTb7E`w$rsez<S+r9eeLw_GDn
zI8;eA=aWGV=+G<Iv~wU&vceeb3CGM=UDesZ-k`?Qb%#~OC5dW!wi0&aaZ;emNqf4w
zlr>=dbtM1Q=E9&wPKqqf^KrR;1M`SHBhwY0Eli!D{`E+}5qU39eo@5!YERxn<tMgf
z5DGp%{jqxus<vkO_rZa81J8y6N{Y%k2(tsjnI`|5s!oi<=;BeyWyE?8(0eY4WeFGe
zC;MM_VROPK2Vz`;8+3(lvdsiI+^-7b;i!rKWGas)3as;qhm@tuyqxC0I>;?AE2`1O
zhhx%91ogw`Jk<UdvNbD<mE*-v-NlD>(l61BSs_Isk}I#_Xr_NM6JL{A98&j3MWsw@
ze{YaxM61fI%yeTb6h{e{#6ztv7smNW_KR40+@K;ox3GjnSam67B^p(HULFbW(~+Q!
zrwdg41_PzbdV94m{!aEwlAj~>g*oIG9>&ktGZY>gF0%54a=)Kluoif#vfb^H9k9K8
zQQN)sn9eXwD%HL{1n+ykcHQO`Xy!7r1=Yz@i7I0_t1a+0{5bpUk1W96Sq_W-k^i%X
z*uQkP&Eo;|8!mqXFAw3@LLHN_3~ij#t4Wa#>v(F_vY78IkSXd#o!{Dd^~fu*)u2eA
z+8_)O#G4?;-(5Qd)xNVz?vx6ZS-)-buICN#NPZVo<@M;yOv^mGjT5c@@${XOAOD&p
zL09J$rXRsYUHCgl&1M9R&Q-3LI>G>tq<2B~`;(-I35c`Xo`?*PPWC|w9Z!9A{}I0S
zR@2ISN+3K}$U*wD)PzP6KRvBfRjcA0dU^xHqLIvtcBx3|!W)|0V@kUclaOI72z^WU
z9-fqd0Ah?p_Rzk}jp<gfv2)|AiyLh=QcPH5q(eCE{H$=>2VQSpR-^By3R!Ygs$~&7
zc?s6>_U&=)n8`gqVLg2t{Vd={e52Zn+d0-47!X~1IUOL_A<?N+EB?>zPUZ+BFgly~
z)<RXq`MUF?4*T4l_?E%$??SEfqkZQa|B!5uPwQJHoUJ|NJZt(LSuqQySf{+eCim}=
zPA#^(TC4}eS*p_y$erF(9PG)}AFJGa?q2gl-d|P((Ks2o@?Jk)#a;L4hZ`<HWnl8`
z&sXMF(^AF)#~{ye_4j3htXS#&NoQyiqSLYDZ0>&P;H}DqJv0dO+~h9O#)g$J*s?Q1
zMf0UiyU{-1%+f3ft%(x?Z87?QJYm{QOR%cC8kc8UTcdJ#Bug@hj(g!=+*9|e*1CP@
z3l79;y_Y(tOOeM!GLqU8P6o3x$~E0wmq)V8daQO3Q`T|W_AVu#Vzr61sitBT<>2M+
z!}Xy;xiQbV+d!WaZn5q2kzh?iEu+_tqbN_*DQVbAP-aRB6>bh!NLjT^!-gZr)?@Cl
zq7Y_I+-lO(Nr*%fW~GgG^n_V_G~c6IO+ro1({Fa|&m4T`A+oyoaOK!^FduL#T#T28
z=Iint`=W3as>P)zc=AvU(kNmag?PTv{?jW(baM&G`~CZ0vHwzXrPr~YvvZx)qg_gT
zI0gBGSxW_Uhmxo4$Lr6vW?eOtEiNt`_FEx5R6Qf<^K|i=pAn&deRcRTZ6mLF#d5WA
z9vfUS2Du?7tmeDte%Q^{ubT1YF5;18)0J+)%LmQ3#p9OI^aW>!CQZ=Zo$*f{l>(la
z-;d;$<uJytuF&idcw9W=*5k2_^l=!an&YRH-cP%Huiwh)-%lZwjTr~SlCqhOWf*Vv
zMm{xe%Nl&>{(i7ViH84vEG&Zp9bIaLOv;-Kt=2ye4(}J9SQ>$9;MKh2JF5TW3UqKa
z*epf@tnu=M!!hpe8oVUJzVsoG@}Z!jHahO3sFrCFQc{M3ymoe2-o|Lq4eROU1qTaD
zz|0&U6Z5gTxjAf+o6ThdCwpo1=6LZ7uP6KAT)9gfrOicO%UB8a(07EMNa2Q{jb5T9
z0XxG_HrWl8u>ZS3X;RqGbkd@+VXR|>VTb?!e@*^RAQ6#NCU5%Qo*ACkmHf^~>aJCs
z1X7QCT4}D^<8l2j9uHPs&-3?1MMYPqtC{ojYCk^U9#~CDaMO{;&lIaNIUOiTk)cAt
zd@$M_O)t@IN=#v~yy!yaTVh#Ws5bq==gkeAHea*ehGV_!2hwH`rcV3VSULMJeQm>Z
zvFY+(C&$y3^!|Ra44)Ubo#9_yvV6~hnVI<Df;0@rf0T>mij*7=rYXrwz)Ixh=U3V+
zbBd<w9M~0+4;ISj?oAh=8ums&W`Q>l5)o0TG!RZ<HdoO5r&u5(pDpm7ImO4N5)lDG
zP##StopW2R>GZwUL1>l3uFOf>>r2|0MQzFtBy5fNSv`iWPjJ3D6ooSuh|tt7tIlx&
zL$Ja^Vv>?wb8~F64f%)egNd|~_V)G}6*V=?ASmGwYaDf**j&1d19K?g_4W1B_<VR}
z?}898X(U!l)S1e3T2jbgGI%^7%>LCBJtMY=+I`7};JzGY8qVa)97>{x+EJb0dwnvL
z|MvlxQ?AxRnfHDR6(T}}I9D|Kx7+0oMqBIB5^j>k@CSU}G$d?RIS|IcAR^ztGiWzC
z*HV;<<gVARdT+*x;t?`3{)~t~eE061TAkIefYMgB@08hh_xF|NQ)D-%tI;_W)5WUM
zyj~A#X|4KQKhoIk{JkD;vQ>(URLe6wbk(`m6$Bt1H1oZmAA&@i5%BQvm~EEkqc9pF
zG0`M!GCWQ=X3Mn0gM(p+Iwx{PPqF4&+LtREYUH4iu(~hD_>hy4zkkovJmS{UpcqMI
zbE$)~vDvWMZ~T8dC3~sIQoXG%28|j-vNj@kW{uMO63tqTk={t`<v2IGz^M!hP__t_
zs>CHGinzOTLI?QO)YRZ)#)G$HA7W;^Ut`V&o`V}V;3(Q4lACS2+DZ{dEBd>sl1&CR
ztiGNNcvh3($CZ^8?#H8QnX18&<?j}T&h5UCE;P9mx~<$!hqF#Ug>6oLC<aYt3kGv%
zwzRZ-VbJr9E3s4jD1#oRQTki8T!*7?_|MD%5eHQxC2tyU)Wy@~Snkv><g+4`QY_^^
zN_J)6Y%Y5C1sYFVAJ49?x~Hb%Fm+rz7IqpM5o9pKawx8j7n6>TtlX~;wyhkNmVykv
z{F0UpPUl)*`!-*#%I+i*5~&;#9Wad85PN|`b*&@NHMm)f{`5qUm-7+h_eW(>!asD(
zHi$ES(1UAxM1dW+Tu!#uIs&X#+tLk9qwUt8-j``N{vhn)-?^4zZpD&PC*yX?Fng|z
zN2Zm{AD3V*or!;NI-F{-GyH=t*u#FLR{#a0w@#$rL$!YPE$EL^Rgn^L__&37V4x}L
zN244m4pa@k%dExFXOBXaazb_Jpm-AWxeX-}9TilM!GQ2S9*#=g07AiRYcAKTPeC@z
zStNMmu50a(7&JQVoihj=c5DCfB6;<j#e5T4MlAgB9~2>fyEPn>pU@i7M}$9JRF02M
z{W9OufB$xBn&rlQW(LdT(9IEk!vlHrk0qG}q4o7!KSQ$FEM<U*HDjR;9|CgZagSD{
zVzo~y`PW0w`L^Y_(e(A1B=mnZkg9n7EzZYSOg<?CcSW1xgEB;y6H<uFNaHwXHG+_s
zek^OZP5A1E)q8hxqCZ;M<5{i$&07X8@(P582hg{nn2h+79W(9Cb0z$dSHEF6D>KTY
zw9?t>N_nr*tYjhLRq_${Si?UwJbZKNYv#pj=1ce$+N6#IlxVq43*;a@`~#)?prl)`
zH*+FLo|^9sQ{}3v^q$x{RSmO_yUeflT%catxpr-FMlwcpXi|=XXB9`LDd9&mWQPX_
zHxA)+ncR=esxpR%E=#2-PX7~B33xH&QI4m2;=VW4B-1Fx99-`jFRuS6H_`5JN`i`J
zP%{hLMDQ;4<!n9a+#AtVr>Bp&qYF+3Ef^X9_ih|dBaYjzX}BV}qC4yU0AEJYj$2$^
zo#R`oTt2Kw(Fy8a&g|g~sDNPDu@ADpm2a<d$XqBW#i_jSKs$A9w0{b}J&3Nmz&CdP
zD{0mJSB;%{f1C{86AOK4)^T~hyMfb7{hm)ewMGw`HifPyrPRx}&%C6uF=t0PUo@pc
z+E1q(t<-Zi%U>ylL^xZA$66mE#(bXAu!n4uJ?P6qeETr*;#1|LMv7Tc&E0y?q$v#B
zFuarXjk>3W3TlMI2LJZ((mZ!$T5F<FsW@tJ=te$<$@4{T^d4Z3nunu(nvp`^7D*sB
zQA9+iE&e<dROR}$nYX*UuX+;>*4`_2$za=x)`xzk+M&t6zW(`Ax5o9;Sj#g`QL4g-
zApz-s(V=)s_qOOawu{j&>*$8R<O~e6?G)FSi$VkEYGmtOR`SXr3s<XHYE#*r_xEm3
z-^;c5v&FSl+pco3vL^l=IkfkhajNi!f-YE}8Ve?Ol4bPTxa!Q&aQ^v_Di~Ncwp@`a
zW^=yVynwUN(pBcRBieTR^WLkd!lT~n(rdpoNz8+(R4D8}0xtv3%a`On8w9G~a@j{K
zNIs_@|MH|-U~bw>c#O*pCYI~Xai9LEFCVuYcUtl8^X7?NZgQ#C--WJPrPzUfF89UQ
zgW<NjyyYt$mV`0S%sc-VG6x^2Q7G4%O5^CZ1C1ry=X7fzi(@!&HDINE4f7$zJ;!Ox
z@dGY~Oj?Dk_hvx^`Eew3h1Jv`*C##nGg1c3OKur`5-57eOeiMb`}S~tA8KoeEpz?X
z*yl8gJOg;NunE|3j8y6c`83X&%*-~tk=i@<-=6FdnSGuIG4@Ipu34g-ZBGVGA0tJG
z!!c=luWAw^-63C~5FzNGQokY}ms61}!>@6Uv#HKQta-Lp(h4H|C_o&3adP&XfJYl_
z_4<foB7ncvpd-_nAKuL5M&`BpWdODOgYncw&j;#an@g!#+Zt_($D3n8MPaB}8{J2Q
z3Y=>GUZ^;~Ab$PDYyAJHmN3RX7_$DjfmX4mQ_Fu3zdcTPwBp;6UWjqKE2S0`C>j(0
z@wB4q&-CENIN_oPZ}11)&gu3aJ{f$zCj1Fn`jLK*myyr(l)huu`YEYNw9J8qFwy9r
z^ZBz$NPJsM40peKI=w!~m~po-e8E-C;B6P0WLXUQ856^AaxZnr6!PA`M63YD#`e9@
za<diTM;omcdA;~|K{*P31C0(|&cYB0gEy+t68QpO{}D7W5Ojn&I{C2=AIEFX=i1R_
z6~eb>z6(M@`;V=x=vXh*GR9t7nE%V-B^*3_C({aabgr2m`FAqad6nVgME^bbJ>N|G
zAZZwZQnvTL|BWZi{O^5E7sC{MSa^6hoVn_gHaycneY9K`>%&^QxpYokqHD0StOp!i
zyv4gE1}AKE01E41LH~P+PK!ImS5|KM2Z&|A+4hga+Dm<Yoxio;F|c{ALTA9ZuRdw*
zwObG#{ouSlL<8373*>ZK)9??=`!7Lo$A$CSn`~?sKB3diAZ9bliK}Kg+_}`+Hg~#6
z5oXFbuF=wR<SFVM4YUf>D+G&QY_gXz!lwB!(rSV)*4?|1iq0QeuBF#Gmc{<{Kj|II
zcDGf79FLK59x<2Z?VKVO&Lo2MoUK)1k?VQdAOoNos68<jy0oTdIt{AY*_M(77e9RR
zz73=FR5)vg+?(#{ZrHYSb!$pylKFJ!&`Q7Sd{_B|{3wNp$Nt^-@$ahW!Mf5JEq7~A
zM9l>kwY;?QgtMFGES<WhTumqW``nx?LztlaDFmCN2F9W}WttbAv82pJ+Z%Q&sxX`5
zrtJH{uhtC)gm9iB_h-j@wg{0Hv8f#i)Z-PEXFGR7f7resL8K9Xel<})v0WQT(w(0h
zSsP5Cp0?3QwQSQ4z;GV<t9Ew0J=AUi_2u>c4rGlT6S?en!ztMe`ey1I^ob=W7de#f
zh~gQZoP#fi>{LpH?d4NG!i$;+rpFmAg6B`uaTb`x=QHHG>S(JQwSDPaUF7&hcSk||
zD0B&kl_huTLs1DDDm04Y?0ZNPjSi;0UJM_W1v%MwlNpa9`~E}r--WJr-v7t-;i%a%
zB?pZ`58`vA1+P0<NIjW0X-=JG>klcByKQW~sF&lRhg$e3UJrY{SHI*4vLCg0y^*AB
z?aFM`%>KKuvYjfymHXw=!kqC_f3~rP5<4!T0{e7YWeRxBg{4pA%6g0LZCt+$K6)^`
zs=oJm-JpJqHugCiZZ{QsW<cMRq+`9c`{X#bXLdA|obQmdp<5GHSrTc_#pB*SdJOOJ
zvfEcM2J^{d^1h%kIikWMD$xa>zE3gQy~0BHJnX+L)98$&#ky#BhlA|Htbnc_P4Cvv
z-+06$>p~N6o7%=6j1R-9P}+N!5v9oPP7z&Cd9vjf5%Inx3*1+1Jj<e>TB+}Mo$~D!
z;T3H(g@#Sl_c8pElFIy=u8)sMT<n2iPCRLa$3y$~Q`WHJxYwUt`2-QEOorve<F7~6
zVmzepThl3|k|9{Izqp=-Djn1h3)!u)@(hGh&C=c&FTbOW{RE%O%X(_DCXtty$KXBb
z+WK;1x#dl`-GjClVpvZf26c_d!aL<zh^v!Yi65CCd5mtjYE93`sQ2P|XA}1Q0FBv$
zA>fDgRM9d!wJAQD<tM-SI6R!Y#qecIPj-)`0G*b#gd{X8_TnnF{{DWwl_$4|bk0Q3
z=6qw$yA}&jS!zU<kpHyyk-`%F3FA?pTQ3ikug&)xsjRpgZrC^I5;g{gBQJH-DsVow
z0rnkaotDP(l?Nk{j)T8oOZ2)msm+-E3zA~o1%oKD%XF3PSY)I((9tnvEE>KGbe%tA
z4JHKK9FJh{*VsmP{cVmS0UM)mIA-OV4?@TSRsfk)K#^Z4wme(RfkB25V$V_DR_H=5
z?U#P&je!NRzRMW$)<>^_rF3z<Mt;uPL!r#z$MIG#kMO2u;dVQLfye=)mBhn#$ZGtP
z&?$i<H$plYLR$1m8+Yp>w6jZ?mduYDpE^6ysDib3%G;nTUC#ylOU~gP^g-u2RUm6R
z^G8`|Hezf1mta~rk7#GYe~b!D{ZdRG6O>{8w!ZZ4d_08NghGKL<9RBmIXO9I(}kbD
zMU^KHiNR%oj;9JVNv5gmAKkC^2&+xUoa?>>*$wPB321aump6CjiN~c`|5)bmxS?rs
zKHfO*!v}qMkOECPo~F2@Bry?@e{%9?0YU5QM+e*$_e0tm4O)Dkr^;$+%7_i~-1z{|
zTjWgbO9<p^2!Zk)^bGp9C(D6BK^%)|ofS4lvtODo2C1deITMDZuoJ}_K7u>=4ca@>
zZzR45M_SgD0NUo;ZT8Y=HH<I(o(~d_Bl~JLPGFj<|CLmP0wMq!i3&aPUnDjgfUjoD
ze`~9yE0a-3<LR{je!o6Yc0T^MZKY^sFqtRbeBO&a%9<+{pWJ&y+j_r)eRHxr6!C>A
z%{ok3tJyVHBofQ+V7e$xQC$*(v|!F5JU$+ch?tne^^9P9D9Jbd+GaBVnU{c=IN+;c
zFZ*JAj@(7yyR(ZSdQ?2TQLfYGO)JH)zz#hEU=Zn4R&?V-8P%*U$7qMkf0pH6jR(=H
zswHPPitjIXr+`I&lA&Y;vY6P)7s%j(H@V-8=1a4dh@~*s-dKtk%jO?Ar0VPLetQB=
z=c7F<#gd$E`0e#z{GF@)siW1l)rH?`-GOkZuE(`=azzp*2}%9np?F`P91IK%?@yXe
z!NvSYNJ!+GoULWj*!2?(s}bZFJ$ULVD1Cg#cpoDG4^Avp-L{S&))}Mq_xImhY2jir
z9d)dubm=i;X0-mttmD2<ntBlu8mhnA>h)nUxLz)8jn-Jzz`!66Kz##dEZm>3pbzWm
z>k~bgDJBPfCL{14qWst6`qezcz9^NXHkVVKB8B`gr6L7k0Re$Lz#r@Z$SA(7{wYbS
zLqSAzyX=x#qSbg&wn|P$Hdtr9NW#mjqoAm040@s}fH}m)#3&e6e=(Vc>69l427d?*
z=?AO=w8TSz0?^cz0x!9EJZ%dP3F**_0WStXYfg*etfG>rRIZ~9jrbX?#lphEWWFTk
zTYpMJw<;6=0W<+Tn&3`jPhA{#hCkWb+7@Xy)xG_JNE8mGZ;jQ0LY>XBhF&YJMorAi
z^W!euA;6j37yZN-3r=Ti-{6pu-x^x=YLiH%Lb-2$RLkk4Q<!5dX8vr$?%9CHQGnp^
zdGVB)2PElz3~1rii~`ara0Ld2hu_c^AoXS$XWiXG6NlFq6QcN`At3-JuC#a{5G2uQ
zQ!&WqPEcfIWLy9%?!fsRme!LnGfxvW>3E(C-veLUe#4ioo^Ect=`QxI;h~`emmGY+
zb4iVd5=T%I0lM^+N@X1(!afoj_+CbbC@U)q?9dLXlFLAP^{T-5`1mwRuLOync0VZE
zK_*ht_W>Q>MQy1F2z<M{J7w9$BqR*hJA>Xx*Q(EJdP4&{2<g(aQ*0KC?%hlu9X-6z
z&`_87)5AjmLxP1_=i?Lz(HLaWUH})!`~BjfH4K((eBUvi^73@2ijXkTs>KWgKRNpM
zh_s4|%BahG5IcxDxw&wNh+A6&aeIz`iL9CIhJGv#VSb7b$^G9862IB$U#(?d8i#{@
z=hM>@Nca6y`NOn%{%7asgzW6e^YioE>$_u_^o|O$LdlHA@bqm@jC$Vi`2_`rjOf<t
z)<#Ao05J{_Cjwk2ls8X~AsH#x&i#7%W>wf+uy#hKrqvF+qiO71&T8HpYV|hDYPAQe
zisXpUP(CmB<e=-IXIKVR45exrj&y2Dv^0Qak6*DOtrqKO$z?=DL^8(i&&LIk^_j82
z)ud(SFSduka4Q=?C5+WzZHiG0dAo7I92P3{1xI%Q!jwGzS8Ke|?8XRi;r?_{oN%Q2
zr&y4>B^RoU^L5+2tIQ^dLZhM*B@(F6|COHnt1W&4%k9>g;dvomq*40^*i|$UI0$g4
z_&FVqQaNmBWIP%|LPAE%S(;zmZdH4Zoc9OC<?zy`rV^s%<ZM&FrQ<+}yX`3>A@LI+
zFL6L8x54u#f@jmDLHiWD*%v(&PTxwA&gGIgr|Y8)G6zD0&qg;~ky>Srk%`F;9NT9^
zM*YtJ_E%b(ghWM$K)xa2;%XYdkS2=*`C8fi=7=(y`yymGookM$>3BFFg=a1fe}8{p
zNJyx{a<0sCZWxEdJ`k*=1DKZh2ORsn9D$5+etT=W)gS9Twiv4A{F0&J+}qa|Y?|qn
zi0^&pC!Z^_eNP9z3L>kV4pln4y2QoB2iP*Hl>f-(OC%5_q$ei!E;Tv;FRWxA0l{$k
z00RFwOsSQa(n%JLf&QfxL^_yFI%afb&Xs8ok!O1TylgZXNx|W9XI|xgxH*;t`7B)N
zB%V@nzQK+dI6*DD^fv<vF`*u*f%%(GthdMFd%jYvOjK|4_5#Zz34W4_kBVJ*`pj%5
zSINm-s#*U5gwXRXrZa=yK;ATbKBz)S$jLFym%1^?q*J;r%hA2Z9mVsN>f~*{+HDAd
zU8tu-y&6Yj6r_Li$vimI(X@`axeU{)21L?D^eP4g1%*P5TB^s}(*l7Y_z%>k-65Zn
zrN~<EHV}dn){P|U<=U52;NalaTW(hz#9n^=`t@dG;~@+pqA-uSb%R`^$6<}m;_}wP
z+f^T*KAMu2J1}N72mWS`0VfxRU0q+O-NagJIcKsznQvrl{MB}aTcgJ8n}Whm<$JH2
z1=Hrcjc|@l`c<!6?NIG!Rg$y?4thG1;bg+=!?~m?;~@!teqUD)kD>jkg3`gm1=CFQ
z1PM}JUfxOI-=Pr^HD;r~0~Ou-<RP3-S4OJGc!#pS1+Y6GeFh~MDJ3Nw$g*YHO(x12
zAV$D*O-@Y#G>!~j1O^74y<M$oPTfx7V8`92(sT?@qs~g)+1a_(QoqFOdWo(AY{bAo
zpE>MFQrT=xdcx3Ewhs^D|B*`oo~~Y@_pNmki^za28^Vkk3k=7!@;EYniWH&4Cu3Im
zT+gWPIl4t}jEs)fJ<K>fKU{NXDpR5R`T1F`H2?C2(2O4Zt}Rh3*WS!`3?>m7qBPI}
z9S7tRHkq2j@@JQqhTtteoLk$GO0>v9h(zO!#L4phs&3Q)d&~^dSVTlb+Nu*LE^zjI
zkc6EprxF^;1K*kG#=g}ZHR>B18)0dp78X<%wf7Xd;0uFJODtC;^2nl~*nSLFIA7s>
z(Y8&#-bQ=cqE=ZzTt=qXh%tM{;uni0MmndHy>EV*c+oN5s*E!$3Ax8*7qZXAS(h}2
z16e4kWIN3khRgre0_ZW|+a+aq-`3R6Mw60~>N9-)%z0&*!s?Y4k2Zc7-sf$qNJaKO
zQiR>*gG?r?Zh=f!s3PDEoeAt>QgUL_^02VX*)s?kI!PgIPjpVHPa)-*aPKcCJgFkr
zjt$E`eEs$hNqLl*jY*O4q;r)-M<-mjT{KTeRjegD##u1iD&`{!Q9LzrLKoT}RmG4H
z-w@c4h(Lw$FH~;Tedp&DhA>Bq$R4+FFv#!)GF1O5f22}kRG?!{Z4X<BM;`et<%arV
zEFDj2+bx=U%Q|I~w^mI3Z<C;nS%jE`{ExVdk{zv%@P;u9945C|^Ik`S8cWh>(S$31
zIz_g3yg&;@5SetA4$m0{$C$$$Mp(!_O=qp8{*;P-pR<^BPzq8tY_SbNi3Y3wOciV-
z!$!8<!s6P4GWu?m$M=`OdxDWE7@o%OBEsnu>o1Q=HP%qa|KyKg+%X~NPzPs<E3CfI
z=u(zwB0MmX9n|&bX+S}-U|~_<9~g)(XoeCBu3zaR_1#*q{~byVXkt++C38F}+*mg=
zn|O!Tv!JrGh9%JGj*da&>(&PMdh|o2l&NTyGvI-i2@baExOwZR{{$>Kve|swOzN^_
z3wYAYz1%Y++aMUc?|;qG$kE~ko+R$|Qz~}o&HnMmnWRq^`m{kt7EIM1I&RPvF1+yB
zzUb_S6H1RDJZIbLz9&b5z-)VCuqRrdpBvYTSSD{Kluk}lyhRPCM%vOia`c~xbn8ma
zvQ3d)Z*hZCSi)xlH&DZ1hacd0@8n>M6NSehDW@&0D57#Ck@kz=eMYCMF34$1HK`+>
zC9*?`bxQMH1FI}Co3Fz3luR#&7YBr<?IK<eS_Bfm>CfQkCXS3>Ztw@)iuguH3x+$E
z01?F9hUEHUXeU!wTw|N0$a?6Knv_CLSfk-{qw8>Z5CWRToU@vI6sm*;7576!Oma#O
zwXPO1!P&}Q3wr?Vkk{QkwNGni$=Q7F2g=T`i#l3uAGH6%852*sxo9yC@-SWR;o$9M
z$hel$KqDcNFbVc3$}Y4aHu1>|WoaUJRC{ucA;~&BzrJQ{TyP-s?qm1+>nhLR=V?9i
z$&*Q=(2*Hkc6?qGwtqPLX5x862=Tn~oJ>od^!?;cK80ugmy9fTS5%uy<xagWEMk#Z
z=3MZ)>TfHVf7PPM)kg*9Bs#4^-?yoRZarex29@nwUmwTNpIY2G)IoM$zJ)-(cKa|R
zts8eWjZKrvk+AuAn}tjvm_+^>eSm}&7yq%Zp<^c<FBA8Mcjl1I;F`XAzRG~IV_n&G
zd#e1j!tF6d8RyXy6E7npBKZOpf@|(2I#LqzXNG$K782G}^(nt+82f2Fen&#J+jY1l
z_qCMz&8hMc=NI$2BmomLPfjcyEH9*le>YEq!73ZEm^#~Qqt?UeXQT<mb2;KoQBsdv
zJSJZEaH0mzlSQ{oIIGxQ$oQ@4aVJL;T@kK~DHrHnd*@3KAN5_!ZAi$;AS#}A_e-?z
zs7pPbf>n6%^p`j8pKf>XG1nfES2m{Cp&Z@*&`bYw1}}pvU521*+<n~JSmOno>K%v|
zjwBY={OSUgO96ZH0FSnlgs=Ep%T43<3Ayh!#YO+YvO|lkjV~S=xhCHsbC<os5Ia}b
zbM|KNulVu~^Z`#y$F1Vg;#JKds`0u&;mSCFki^Ze=!u7W`2uqU2&`Hg+0?y0h`UFh
zp@k+VsLjOW`k7%dNyCG_E{DkxyxT9gPA4Mes=*NB4c0JG$IBy=Uld($N^i|q)(P=E
zYuI=-s`0J$zQYnf-u!-j%mlMcn0njX)sSfOrJZjO7A!VV!6E^@L*ai%PDKZ<3lYn-
zg5VRnIR2W>;j*$>uZ9LcaKrE?q&N)>4jbLf<+`05BfFhVtUyeg|MPF9%?(*-U@hR*
z+<!Pi>TNz6X>#W7o+%SpsMRc7=AOz>-}$JMt1^1}VjKVqOOtfTK|m2QeK_~^OJw1+
zMbt|*su#aHujfr=8hfZJox{Z%FT~Rzbk#$WI!@@qK;)JY<D|lXlq~VJJ0s^S#6g|e
zKz-M$-r*lUv)g`DX6w1HyR}MaM2E9O_dGc=Xa&glB&7RT#XG}#&l~p~t3^r{GPp~o
zY}tV#CUNE;QBcvt8q{yJD~shuGlCC}ahRHl&o2h=wdLcvc%fkZ2h2!#SQ1p0@z(up
zCfqL0ZdkZfW!-nBWpMw=p3bchRR}Ps8jM{ohjegoNw&Rg3t6zd{MzPw?oTSeA#Sio
zUwQV%&{r<rwO!JFfJ#}cBb1dChtAqWl|{vpXBl(x>p({+_9v2W%?WkbRVt&59}oLZ
zyVB^TpP(UqKQ2+o!(F)eG-_QXB|^+KTVl`-lWRUT#l4q>z@A19mPoMPG^5~f>Y4pv
zjE=1J5*oqhE|IM@1=d$&Q{1Gttu;;@4h~}hLu;XV(@%Gy-P5|794<*&sV4X4=t0$b
znt$CjLUsKUuGB8?Se5yL!G^)ub|7u~*C4*#F_C<g+)ISD?iU`8)#HU4I@yPFL0!Tj
zJ$`vK;2t7sGY772uUsNJyd{i%H_6xq=9F`x3k}ecu!tYBL9BuBXAw11hlX19Im76?
zeKx#)UXfXP&q9{#&vW~s>X3af5?hW`;LhF-$9Qmo7X=&BBg!_oZFGH^E2I!r`1O|8
z_)(X7p}~<bEGOqVS9W~ug?0GJfW$NkCr76G@iVtG<BOl4=k1Ezi%v_L#Ehl=vjx#N
zbipq-$I*8QltVk)l6NO99r3jI5lPX=U<Im;dlW2KEe5m3daLag3})#wWEbE&K$x#(
zPn>l`JHWxiz1N$n>XGu?m8P023@s?YWWi$D_Gx>Osx5>@eDL(dOHHjimCBrZ;ql%+
zNEq@wx8MT?`-Flgu64wr;ds)EfFB`JIVE3T-FK%*-kl^XijFrYaKsn*IzXX6(@XP1
zM#>Snj>9hwh9$y_CC1C+=s~FRHA?a{QjS2o>nFZbkf^hv>Q59UDbHdWKAGB6OBkFA
z2&vK^JqYN|rIY86%=Kzv;l--co|9}LY|xZfN9M0jxU3#&F%ao^DE@zpCQqM9n!T3s
ztfDsBon^_|G=CtAP&7aM5nQ>AT0EksfPGo{BbS?ld3r<Dx4zutQM1s(Z}PWu$<ABq
zF^dMlTbV<Gg#T+PnpWjI9WQCv^0)y-!E#hI1<ph*c7#v!%}c?$eUB5{ghAzf6!Em0
zuAJBuyqOEbQg`lY3^q8-hcVyAUf5vE(zJ1eldvL0=Bqk``Mjr5wPbqgSCdt7F`#-*
zgM6Mjr5<GNZZr#5+W8mz6wL4Ve`}khN>a~lD3|CS4gC$$IG9#&^$8S6W$m%>znr}`
zGD^nulKw@O#!Xq{#vX~0&bSmc$0jbT9I~)BQitA(vsj!hi|=ZlC7=|qIBXZ0;NKV3
zal}!v#zwgPW4u`r8cD-guDB91GHGgrn)R)QsGkY<nZ5shhmT~v2rqjrf8I~Lw!QT0
z)7(c1n<#v?$J!D#YlAU9c$NcW#U^2B7Hq6Stc0MXXvtresH&sI9Iaz<#7)iY6(b07
z^4W@_uIw7?*}*ui|K(CNWXRdaWqe3w>q@Dua0?H8eng`ROexeD<IhilrcxgJZGUZb
z1zC2yZp+-6;DDFLv(s_Ei8YFQv(=A>^zt%Z!ofYSk}U{R=#5DajoDrsWX~l+jKgWP
zg1?>F()se-*%1IwAxFuWYM(9gPOzE+-y+X5Io6i|)p!US_XQ0Fl|)xLHm#8C<!4xf
zTC~rt7)SX|r#gB<XSR*DnUZd{ouS#v68Ef<0EN0hBQ_k|_p7~;<wTiZE}EPUA`PCx
zguEXZCkYGv*Hn80%Vow7q+JiCTp!^rBD2mJvj=9N$6evofB3+ZD=4BVQRJ=4#m4?2
z;!!3fRwg7B7Y0QR_8j`VLHG_r0W%7vaHT>l^A)Ee3*|x;BxWpfrHE&MgeVaMI+_&~
zwQ#hWObq5LP7rbKm_7=f9GjHu2A5bte3M73X?<lSYH1#RthHWXjBV%ViRPKb^zniH
z@Zu6(uOPM0lYeDHqh2Khh@7$015lnwj-;>vfcI~LDyhIRvn&=LNVg38V+d6WeAfJ6
zC=`Dq7OR%m<tmqr@sP#?ZabRJCF<ztxE_n3ced6Mfz385qmqDlLYckfo>Ew<<{q2c
zhvyLiI0c}x8J)yQC?}!4H0?m*W46@rm0UKXd9wz|@-xsldEA~D1NBlJ_U^+Hb_<^G
zdRK6+LeU+-LdQQ>OLOfF4Gdrr5UM3J=!RPe-&B!*R7wXyPk8hoipy&C86d9+Jf43x
zZht9mf5?$ZCAXg}H{I_SWFDp1T3OKmpt=ok5r=4Vyn@7QW1mQFED(<|x}NDZ?c!o!
z^a3#34;t*FjQV2v127yvHvr@S*STzTJX`R7C)L(|mNrQRv~X6qdejl1L;r|_GYla0
zdIh7Fp8{<>Kp;Pplf?ipz||OyArzE&hR`a)7)<_Z_?gp@f{LqjzXf|@Vxqg}P5AsF
zIB`=-!n%AHAQ?ale}dkBT@kU&0QAndnsru`rKb2vD<|h~q~r2(6M$X1#EZ$v$+!M~
zvEH`8etWP-!Q`s~XOR8#gA>4qqX7PeUvqEVu6Q5^bhLvv4J#cs$Z>=>9!~xWs73r6
zO;;OgaXlwO!eU<Q4n@6dI<wPJk$VXInVv2U(El4fF4S#nm3I4r2#rCnGYq=)BIRNX
zaLYlg5nyyI3A$Lf%Mmtfsz>K29FEQ~bn3ISGXhS|6sjJ_l3r<v%-}@;+wy==jdj;y
zvlq#HA}2^lSa`s)yoK!3r%!JLbzpFiieb6c>oE@?s-RwK__n8u@Vkcx34l}bL7TsE
zcu4*FxcYjO*!EtF%1Pi2K4eH}wR$#szTEFtIqoZjMn@+_^FE02KI{>{VNk#O2pkRt
zuu!BN9O^<sfIkTrObq}o178bf1|JxGUY<PL7OPF8BXGG?yzkb71*|`Q5|@xb@$vEb
z#h@=BGY@Q>uaGa{jBZF6PnTVy+ol7C8{I~X02E`}HWO-;s_1y%8@oO17re1^41S>8
z)7Zl=0<Aiu<K8&8evA9{Pk@~<EcyVx%LgFOCD7;jdTwKLlbF8w%pVb#Q^{hkj23k4
zR1D>f4!c0l#Nm(r35*1?AON8LD_~uTnlDL#%=c6Q)=E%F2pE@$DnSCE-=xduV0>>1
zU#-86MeUx9OiaR{h|0ht7Kw<-%E}Tr2D3K>!2aLxlFU3<ub!bHNg!fQM@>vlrT}1?
zlA#<pgsgu+z-1s<RY)T+!3g?iKrRvOa1EsE3zdd2UJqB0YvpY(0z$4^v7+`HYMk*v
zyBZd<^i{54#sY9NO6Havie}*dZa=QU3PpD4t%2#y7#y``9gQryy@`Z`#2~ISpeD>%
zk-~NJ;R?j@wypO+RCT@30kDApBa}d$@;;`ylL<%+JT|~3<k5nzuCBP(&CSg*n&f$J
zmmB~Ojf^9geP^<Yo-Pxt`bjnQ@cM!4sDE&fh?;tcjxIe>fhy1*j4^=FtsT(DWK;|k
z6afhdc<8P+7%eg~GL87mf&y}&qujka-*oGY#^;j(^q+RHYiKAOD9QY6+nzBP9?O;*
z>;i^|bJEe}04xDmrNR5zU1lES0Q**I*04j;T`^vO?A-3RlP&|7EpoR`yqYgZxiD(w
zg@%uR0eILCIF_)`R%Z}G&fKB##nu4EB044}Ip9Db@RMz^x557e)iHsDMCR@7&1kpL
zomK&yP{PctuxU;a4G}s3oMsRQIz-PtmqrgBS)S|or`6Zz%pL(?=U9Lj#epwv0p^wj
zl$>vT_cP)TqJ`T|1p59YU2jSvHxC}cABeGUcT!_M1wUeVbF}d0W&lXV0gbePr>Cb8
zh-BfaE)lwfyVwOl(ciLIB8~db(_3nl61~%v7G|sYn2-=y;E^Nwl1VfvP>i1uX*6mm
z#`>+~=l;V5nIa08%l=|ZoSTPd0RZebkPYOWKwGKC?e2MZrVm8@p&F%RAnZdzLWmah
ziAjBo>Hr$90>%vAz~l9t-yjd;*$2QjLsbTD>!+X$B`w{{!y&yA6}mM5-^?d|P%v+}
z9RkdE-hdYvn|)nv0AxECKv?H$2e8o~0;y&}rZ?y6sc00A+g#0iFV(bovuv=lL;-th
zps@i_!P^MWe3Ar4(}^6H%NfLLCAfhm_zHH)O6z#d(-)9Yvne5)riTHc09(yl?l4U?
zKq7U~9-FT;bORA887Kyk;eJ2~tk?y18ieR0|M-4#2`w!gd3kvpF6ZHm2^G~fz#%uE
z?k_!GpKnK5^9$pp`toCmMSsS}ceAZ}zK!d;0TC@!uO<VE7^1@ej;}<;(IiYv$YNt-
zt(F>M!H@|fqrC?}-;dxlOEVY%fU8i%b7#K|D}in`?mYqq`yyH~yVC($sYdMv7_xAn
zCX@R9oJmIi1h%lXanhV9G9XL^>ELpRz75O_iPk3tKnBYJ=?&;lus-Q;4<?w^Y5?H5
zZ#8ALF^i(~2_StxaF=hIXwy_>0y>^G3{1?v*-}lnr}I8auz{mfDShw1LGJ;3qO}}a
z5YX4Ytsl_iYU@79{NkvH0kcqvUyR28edND#Zvh(E0kETOZS;hXvW`&!1t1AnEA&zo
zYOF}I-4!tK+_aj4@2p)$1ZQhVUS3`}65I|iE-t{i6nqZnqvUF78k7JSWDI0vWO=mh
zD33pK+5Xid)Ub0mzgq0KCGe1IH9-RDjmDRC!sLx2;(H6jgW1y5KAuaAMxJ@CPf3`A
z$7KPW=}~}8^F=QjiUaVS^d{zQv^VDFzF<X;6fullCJ9GP!jQ1CvdW+>cjUwc?`U#&
zwk}gM$olmBywL2%gift8OpHNKPmh9vl4hpf(a<bslRdTX3Ud4XR-9~_S*+Kas1<C$
zgbWM}rnJ?-(dp<$2NIWYlQ6&_M-}4oA`}nANcTWZ6ACC9z@ofaGt7V&RPMYh11fL7
zC}Chg1WFO0w+`iS*x6DtGtUO46%ch}@bU41O<e0CbYmQ{et1~wZ5w?%1?7InkTjOI
zzOhhE(%To8lK3N8D$m3u=kf+RA*`Lzm;xV1>V7Z*u3SC<6kd}+6}>Z-d3xqGpC$}K
zU%k~6V5vI-%h{6krC&^1oK9f~jRylpjIqBGf}#t^0sM(ag3a>m2@6yyl@N-=0xlK|
z!c(!=k6dcONr8cuHj>41w!*mwzOGcWFP6!)aA#9cIxaM&s3`DDWIW8Ep~@bu>`$6C
z=$H>$&~%Wy&CPcMMgphD(p3XO;XjZXU$cYvCR?~7u~?`kWHECm`hlaVw^)5iRV_Ce
zo5=mIXy(qy^is{4H6cQTO0SGuw*A!PuM`227$hBps_&)-ttdCoLS}|cW0kS_!XI?x
zn<H^hMS<yFP0~P}$9h42{s5TP<S#-Yi+!=R-QPK-M@18M_WjJ?JxGnP)jP6^`Yq9~
zId?(~%EzbZ^GAY!hub8O6Xtp2l_ISE)re=DE^7|%JKDFkwR!$g8G??fNxl7LB<Ka#
z|0(7Rf$YIG%GM^aH5PM>xnjZ20$hhg2|f_)-;^MNeIIVpVq3pO2V?uMzNqdle{bOo
zO8%Url52z1>$&Jae}6?SBaVQG$PcMhPGyUr9}<Rqe7_16#I?Ro%VYFg#1uGk!d+b_
zsDca)b~p_WY+=l|BVfkuin8Jr<>k$%`;<xH;y5l%b-vtx<|NI2F*1UUWkbtEod6uC
zdg1c=8<;>z9DQ(IwH)dc56dW#8~agL*R53+-*T2koh}{>k?$?8%!;z621K!>M=d*)
z%K`|Noj8lI@iI(xQA{grS9#4fiW9jDrv`K|3sW`ckYb{_dGh^b$X6q9Q>)iw-m8(l
z9S!UEl9!*<E{IdZY*_a%Lnl~oZDq6?&mt;EtwWC+ATi{9)e->1L1Fnc9ZZ*|QGds2
zi|r1R5t{TMdMyf2?<6T9!p7jwSQM;g<*TCfZ-S{#tGObm*6Ot(F=8?@=*GBjl51x7
zw{j4szv(Bz8ASvK2g1A;my(jwuUD;*!+5z#4K%O4s7F{zW<fs(v|zeOOPx-))rwDe
zOAr{Cd-_iT_wFI}FS_ri!i|a4VS#(s7a$#AI)=Mo4qg}!kw_IM2-1CLs?*x!;m)&h
zZP03R9(jTPba}YLm(C>#1}9(twm)k)ltLEm?UKWQ!DotG6h0pvp?ga=dwZca!J&;#
z5{;Atv1*D_awdi_<)yZ)?EXYush|uWK97B#<MbhEQ{dc$r*P~)ef^(5e;WLHJD|6u
zTb}V$sK6oABF#?~Q1f2hZP5kuTb*C`Du(xg$rHu!ik`YK4HNd(w{#h@-G8<Hct?x%
zvI4aljSBDwV*Jo<9z$6#&$Ot65&Kj5={mYb!Wj7|D?{X-3?ay3JRfaiChoiMyM9Qp
zL!*?;NeT$~F9%-eRhuw&LB7h3{>e3pkt=0wQ<c-n1|zW|#iF0mk*cWuyfHj%K71kf
z@(snl63K8m!D%<+&>va)skl`9eVaFqX)`gaAS?2_ySv4tv0t;x{GO2PJKklZsp3W|
z7HtI;WKgM5fH7GjsAE)CT^akK*lY{GigCqc5D*eTAruB;5Iox=9Kv3Nq*JdGhzT{?
zJAWFqgo5r@!~TKT3O(V^{9h5$B>a{y!t{i448N`}(D)1y$8$T}`jlx1N7pbH7kqB}
zPv)Jd-*P*<9?M6hr|(J3WNY|Y9oFkee(5TjKlz*>NQsF}PgOPVEVm{8eu-4cf5vu2
zPz$+VL53WIf;mBHV?QiJlv|yOJ6^2cg&QM|Up}0hV&qyp5HNv~g&<_(V|%B8_LJ;A
z14MnM4Jw3M9ktbjSrNt2zuKYS+#m}#B**a6QcuZ3<@g5M2VFzCuabJ(&B=#PPjekm
zM9Y<FH3|q*GmSwT_$?xfBMgw+*x1l&_5Y>irk-=TAz>ya?(3P<0M!@V%|)k1baEWO
z>!%G&7u+Bt<4;LLx?gNiCBTWS89G}$UwV_il%+h3pQA9ay);!zX)r{kHTeY0WT@)u
z^{Q?Y{iCD3UC@0+5b)(mOK2{*Ztv8;d~xf%fF-41_^7$$kqWtJ?={-{WJ4Qa)BZ;*
z6RACu-v!&M5!-HM1sqcx{muOj3QD}<o7FAU*RAJ*zldlx=Bkymu@b^^YHAr3+yX_*
z4PQO1?qu&F?(i9K?x6M%)HWh+A-^L!1lW8XKQw6|PRxDHRRIMPZt4XrEG&QNM9k|>
zZV(eJ>^r>oiSODVaKExyoQl}ZPUy5`aMmAJXNpoBH#u+1^6{1A^Hkule;EGn!SKX<
zX;fX0XXlm3m#W=)IJ%jVjn8&dH#UDIqHWb;XqW_|pt{<8x-d49<6EjqshX*=hVJm~
z+{e2Q)oQH}cthxY>Q3?Rtyn(;0hZGWy}e5!6C)!@_n7Rc+5*hj=>gJ(LD?A8S7es@
z?a}r9ChY?Id~*bqv0~4ib;9zSL(?R?cv8tkF%RtCH2A-1>Y|tYe|gW^kLx{lKfXM6
z{TPts<#ldcKPEW-iv0JuO3=GbYk)vs!@4z?T1^lvl~SqPw>r-I)+4ts->?p^t32;7
zI)gxz6D2@F9dB&j)4Wo7X5n5`Z@YIbYU*G!w9^qa_H?d#$B}WS&*Wy6IZG=S<r#)!
z+%H?a*gy{@(Z-3Ds-S4KyLxDaqY3{B4ip1(a_t}@q6@Pmx{JE{`l-{2*+U4i5FMX-
zL5|at24?$iSo8cT@i2s?K-#&)RP?vp-4rg=?YU$XIWBi!9<an1w)q!ALAp5My$gqb
zJ^x$CyKVMh=10nqt7@;Alr*yX2JSgl>32Z~hiqXK$Yv%|Z4YvEZ?{j(xy5K`luAA9
zr25-b>Sd~fl#Y*xPsif;7iAaazD0sm9}=>s&T$j)5rtv}Qn#_8;_e0^8<?WJnZfwZ
z=$=}u#@=RKp9H-Yo!0ZS@Anc7?=J95RZ?ckXaUoy)rJ&a10}^|t&^pB!PJ6NNXLpQ
zYriR0q|(*xn8Sf5Bv|32qlN0pB4bJO?71N_%!Y-<a;cbei`xGzYcB>KPr0mnvIdNP
zildT=RmhNMS~CAUdFK@O_z!kcsXWQX`X8EckKRO5Je^j9+?y?3T69<&+9M16q*RJX
z6bj<{njGJ>D45rYIGv!!-Wu353mxA#s*>1t?686gojuIg_+A0}oWjC-!(}3;fDVFc
zlhODGKqa<zIuAEaBwnE|ekUdU_xK=@iN|9E#D%j<VO>BV61%e8Bq>~~vT}13-_@fg
zN=fjljONxpCTsEI$KVydPdq5&EN!~#yi9<g#cICdTgK^>sDF*d{@yA5YN3*SNDe(F
z#gRl$^UD@3J$+HpoMh>^+?VI`KKqj;4o#cvc_1^X@nkj#eA^6(eSGfwy9Ax}T81{3
z%hY0C{h#{AWCtJa#7=FNjX;@SN2gr5YF7uO8-P<}Y_~o4rYILT{EXp8u(drX_^m)q
z9gf9MnuQ}bo_$H#F1&`bV}9G!+Ilo;#-8y@yeoxe|DhZ8%Jpu2gGYENDg+j&UJUj-
zgGzL2LN<59=1m#E#|EIjeJ;S*RR3Zs+5Z0Y;BX#>$!_@tnwIQ&GTS5vG>&}HeEC%6
zj9K^AzWAf_@gAt09rq{Sx9Hd+SL3=MN-8Lz07SLh{_+gYaiki;Alp;YMTO6mt!Go*
z70%qbyC%OPqXm%!_#x(gO0Q?zhI&`1RfJND&GuU*0GioiIs}|eTdHKUG$&wTNdQo-
z3Mc?Soc`;H^?GbT!|V$xR-ITXA<s;`HhT9H37S!w?473<92|U(MXklO&1}Tq>q7@X
z(d3I1NJW$P(=OdXuJ0cnCIOPmt1Cy)2*?*H?Oi`8P(oWaD$4?)k&%(n*3raHf6KoU
yfdQ`hfk;IPbr`NjJ3PGPq|F9!jE(XY*<$^VFB)XaJMcjY5aPlzLS+Ja{{I6yJsE%i

literal 0
HcmV?d00001

diff --git a/test/python/visualization/test_dag_drawer.py b/test/python/visualization/test_dag_drawer.py
index a34f9641106..eea4f94fb38 100644
--- a/test/python/visualization/test_dag_drawer.py
+++ b/test/python/visualization/test_dag_drawer.py
@@ -12,17 +12,22 @@
 
 """Tests for DAG visualization tool."""
 
+import os
+import tempfile
 import unittest
 
-from qiskit import QuantumRegister, QuantumCircuit
-from qiskit.test import QiskitTestCase
+from PIL import Image
+
+from qiskit.circuit import QuantumRegister, QuantumCircuit, Qubit, Clbit
 from qiskit.tools.visualization import dag_drawer
 from qiskit.exceptions import InvalidFileError
 from qiskit.visualization.exceptions import VisualizationError
 from qiskit.converters import circuit_to_dag
+from qiskit.utils import optionals as _optionals
+from .visualization import path_to_diagram_reference, QiskitVisualizationTestCase
 
 
-class TestDagDrawer(QiskitTestCase):
+class TestDagDrawer(QiskitVisualizationTestCase):
     """Qiskit DAG drawer tests."""
 
     def setUp(self):
@@ -49,6 +54,22 @@ def test_dag_drawer_checks_filename_extension(self):
         with self.assertRaisesRegex(InvalidFileError, "Filename extension must be one of: .*"):
             dag_drawer(self.dag, filename="aa.abc")
 
+    @unittest.skipUnless(_optionals.HAS_GRAPHVIZ, "Graphviz not installed")
+    def test_dag_drawer_no_register(self):
+        """Test dag visualization with a circuit with no registers."""
+        qubit = Qubit()
+        clbit = Clbit()
+        qc = QuantumCircuit([qubit, clbit])
+        qc.h(0)
+        qc.measure(0, 0)
+        dag = circuit_to_dag(qc)
+        with tempfile.TemporaryDirectory() as tmpdirname:
+            tmp_path = os.path.join(tmpdirname, "dag.png")
+            dag_drawer(dag, filename=tmp_path)
+            image_ref = path_to_diagram_reference("dag_no_reg.png")
+            image = Image.open(tmp_path)
+            self.assertImagesAreEqual(image, image_ref, 0.2)
+
 
 if __name__ == "__main__":
     unittest.main(verbosity=2)