{ "type": "excalidraw", "version": 2, "source": "https://excalidraw.com", "elements": [ { "type": "rectangle", "id": "canvas_frame", "x": 0, "y": 0, "width": 1140, "height": 770, "strokeColor": "transparent", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 0, "opacity": 100, "angle": 0, "seed": 1055002771, "version": 1, "versionNonce": 1795383220, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null }, { "type": "text", "id": "title", "x": 40, "y": 40, "width": 940.6800000000001, "height": 33.75, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 724990060, "version": 1, "versionNonce": 555222682, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "One lost packet costs a round trip of resends, not a reorder buffer", "originalText": "One lost packet costs a round trip of resends, not a reorder buffer", "fontSize": 27, "fontFamily": 5, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "text", "id": "sub", "x": 40, "y": 82, "width": 421.2, "height": 22.5, "strokeColor": "#565A6B", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1476559581, "version": 1, "versionNonce": 1623114449, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "request direction: gapless pkt_seq, go-back-N", "originalText": "request direction: gapless pkt_seq, go-back-N", "fontSize": 18, "fontFamily": 5, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "rectangle", "id": "client", "x": 70, "y": 126, "width": 160, "height": 56, "strokeColor": "#191B26", "backgroundColor": "#FFFFFF", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1343123542, "version": 1, "versionNonce": 963562626, "isDeleted": false, "groupIds": [], "boundElements": [ { "id": "client_t", "type": "text" } ], "link": null, "locked": false, "roundness": { "type": 3 } }, { "type": "text", "id": "client_t", "x": 78, "y": 141.5, "width": 144, "height": 25.0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1946007566, "version": 1, "versionNonce": 856423945, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "client", "originalText": "client", "fontSize": 20, "fontFamily": 5, "textAlign": "center", "verticalAlign": "middle", "containerId": "client", "lineHeight": 1.25 }, { "type": "rectangle", "id": "lane", "x": 590, "y": 126, "width": 180, "height": 56, "strokeColor": "#191B26", "backgroundColor": "#F2D447", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1741836623, "version": 1, "versionNonce": 1196805559, "isDeleted": false, "groupIds": [], "boundElements": [ { "id": "lane_t", "type": "text" } ], "link": null, "locked": false, "roundness": { "type": 3 } }, { "type": "text", "id": "lane_t", "x": 598, "y": 141.5, "width": 164, "height": 25.0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 500349243, "version": 1, "versionNonce": 1557494930, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "lane", "originalText": "lane", "fontSize": 20, "fontFamily": 5, "textAlign": "center", "verticalAlign": "middle", "containerId": "lane", "lineHeight": 1.25 }, { "type": "text", "id": "lane_exp", "x": 780, "y": 142, "width": 115.19999999999999, "height": 20.0, "strokeColor": "#5A2D91", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1323604775, "version": 1, "versionNonce": 445287083, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "expected = 7", "originalText": "expected = 7", "fontSize": 16, "fontFamily": 3, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "line", "id": "c_life", "x": 150, "y": 186, "width": 0, "height": 474, "strokeColor": "#565A6B", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1.5, "strokeStyle": "dashed", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1177735600, "version": 1, "versionNonce": 1985174101, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "points": [ [ 0, 0 ], [ 0, 474 ] ], "lastCommittedPoint": null, "startArrowhead": null, "endArrowhead": null }, { "type": "line", "id": "l_life", "x": 680, "y": 186, "width": 0, "height": 474, "strokeColor": "#565A6B", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1.5, "strokeStyle": "dashed", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1279186811, "version": 1, "versionNonce": 883490041, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "points": [ [ 0, 0 ], [ 0, 474 ] ], "lastCommittedPoint": null, "startArrowhead": null, "endArrowhead": null }, { "type": "arrow", "id": "p7", "x": 150, "y": 230, "width": 526, "height": 0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1596340743, "version": 1, "versionNonce": 1544840360, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "points": [ [ 0, 0 ], [ 526, 0 ] ], "startArrowhead": null, "endArrowhead": "arrow", "startBinding": null, "endBinding": null, "lastCommittedPoint": null, "elbowed": false }, { "type": "text", "id": "p7_l", "x": 168, "y": 204, "width": 9.6, "height": 20.0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 309911678, "version": 1, "versionNonce": 1277099383, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "7", "originalText": "7", "fontSize": 16, "fontFamily": 3, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "text", "id": "p7_n", "x": 696, "y": 218, "width": 187.20000000000002, "height": 22.5, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 235624786, "version": 1, "versionNonce": 1234874649, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "accept, expected = 8", "originalText": "accept, expected = 8", "fontSize": 18, "fontFamily": 5, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "arrow", "id": "p8", "x": 150, "y": 288, "width": 270, "height": 0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1189401496, "version": 1, "versionNonce": 1625303963, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "points": [ [ 0, 0 ], [ 270, 0 ] ], "startArrowhead": null, "endArrowhead": null, "startBinding": null, "endBinding": null, "lastCommittedPoint": null, "elbowed": false }, { "type": "line", "id": "x1", "x": 410, "y": 276, "width": 24, "height": 24, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 3, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 158775612, "version": 1, "versionNonce": 309374203, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "points": [ [ 0, 0 ], [ 24, 24 ] ], "lastCommittedPoint": null, "startArrowhead": null, "endArrowhead": null }, { "type": "line", "id": "x2", "x": 434, "y": 276, "width": 24, "height": 24, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 3, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1860743298, "version": 1, "versionNonce": 271979172, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "points": [ [ 0, 0 ], [ -24, 24 ] ], "lastCommittedPoint": null, "startArrowhead": null, "endArrowhead": null }, { "type": "text", "id": "p8_l", "x": 168, "y": 262, "width": 9.6, "height": 20.0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 421832513, "version": 1, "versionNonce": 1090782888, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "8", "originalText": "8", "fontSize": 16, "fontFamily": 3, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "text", "id": "p8_lost", "x": 446, "y": 274, "width": 37.44, "height": 22.5, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1114605882, "version": 1, "versionNonce": 1664062109, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "lost", "originalText": "lost", "fontSize": 18, "fontFamily": 5, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "arrow", "id": "p9", "x": 150, "y": 346, "width": 526, "height": 0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 837018370, "version": 1, "versionNonce": 1654800814, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "points": [ [ 0, 0 ], [ 526, 0 ] ], "startArrowhead": null, "endArrowhead": "arrow", "startBinding": null, "endBinding": null, "lastCommittedPoint": null, "elbowed": false }, { "type": "text", "id": "p9_l", "x": 168, "y": 320, "width": 9.6, "height": 20.0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 417779064, "version": 1, "versionNonce": 86940440, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "9", "originalText": "9", "fontSize": 16, "fontFamily": 3, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "text", "id": "p9_n", "x": 696, "y": 334, "width": 224.64000000000001, "height": 45.0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 142443612, "version": 1, "versionNonce": 145450874, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "gap: drop,\nout-of-stream BAD_SEQ(8)", "originalText": "gap: drop,\nout-of-stream BAD_SEQ(8)", "fontSize": 18, "fontFamily": 5, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "arrow", "id": "p10", "x": 150, "y": 412, "width": 526, "height": 0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1261733469, "version": 1, "versionNonce": 1944356277, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "points": [ [ 0, 0 ], [ 526, 0 ] ], "startArrowhead": null, "endArrowhead": "arrow", "startBinding": null, "endBinding": null, "lastCommittedPoint": null, "elbowed": false }, { "type": "text", "id": "p10_l", "x": 168, "y": 386, "width": 19.2, "height": 20.0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 707461487, "version": 1, "versionNonce": 1974876762, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "10", "originalText": "10", "fontSize": 16, "fontFamily": 3, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "text", "id": "p10_n", "x": 696, "y": 400, "width": 308.88, "height": 22.5, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1290783811, "version": 1, "versionNonce": 1983049272, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "gap: drop (holdoff, counted only)", "originalText": "gap: drop (holdoff, counted only)", "fontSize": 18, "fontFamily": 5, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "arrow", "id": "r7", "x": 680, "y": 480, "width": 526, "height": 0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1832392837, "version": 1, "versionNonce": 34249773, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "points": [ [ 0, 0 ], [ -526, 0 ] ], "startArrowhead": null, "endArrowhead": "arrow", "startBinding": null, "endBinding": null, "lastCommittedPoint": null, "elbowed": false }, { "type": "text", "id": "r7_l", "x": 190, "y": 454, "width": 115.19999999999999, "height": 20.0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1094423799, "version": 1, "versionNonce": 392600702, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "resp(echo 7)", "originalText": "resp(echo 7)", "fontSize": 16, "fontFamily": 3, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "arrow", "id": "rbad", "x": 680, "y": 540, "width": 526, "height": 0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 635618275, "version": 1, "versionNonce": 1619570413, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "points": [ [ 0, 0 ], [ -526, 0 ] ], "startArrowhead": null, "endArrowhead": "arrow", "startBinding": null, "endBinding": null, "lastCommittedPoint": null, "elbowed": false }, { "type": "text", "id": "rbad_l", "x": 190, "y": 514, "width": 288.0, "height": 20.0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 713302583, "version": 1, "versionNonce": 1389445305, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "BAD_SEQ, detail 8 (resp_seq 0)", "originalText": "BAD_SEQ, detail 8 (resp_seq 0)", "fontSize": 16, "fontFamily": 3, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "arrow", "id": "rs", "x": 150, "y": 615, "width": 526, "height": 0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 3, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 514233614, "version": 1, "versionNonce": 248714545, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "points": [ [ 0, 0 ], [ 526, 0 ] ], "startArrowhead": null, "endArrowhead": "arrow", "startBinding": null, "endBinding": null, "lastCommittedPoint": null, "elbowed": false }, { "type": "text", "id": "rs_l", "x": 168, "y": 589, "width": 297.59999999999997, "height": 20.0, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1487698411, "version": 1, "versionNonce": 602918645, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "8 (bit0) ─ 9 (bit0) ─ 10 (bit0)", "originalText": "8 (bit0) ─ 9 (bit0) ─ 10 (bit0)", "fontSize": 16, "fontFamily": 3, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "text", "id": "rs_n", "x": 696, "y": 603, "width": 140.4, "height": 22.5, "strokeColor": "#191B26", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 569142471, "version": 1, "versionNonce": 543890075, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "accept 8, 9, 10", "originalText": "accept 8, 9, 10", "fontSize": 18, "fontFamily": 5, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "text", "id": "n1", "x": 716, "y": 438, "width": 221.0, "height": 42.5, "strokeColor": "#5A2D91", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1950597357, "version": 1, "versionNonce": 1728226490, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "the lane never buffers a\npacket that arrives early", "originalText": "the lane never buffers a\npacket that arrives early", "fontSize": 17, "fontFamily": 5, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "arrow", "id": "n1_a", "x": 945, "y": 452, "width": 105, "height": 66, "strokeColor": "#5A2D91", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1.5, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1632447711, "version": 1, "versionNonce": 98238575, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": { "type": 2 }, "points": [ [ 0, 0 ], [ 105, -32 ], [ 25, -66 ] ], "startArrowhead": null, "endArrowhead": "arrow", "startBinding": null, "endBinding": null, "lastCommittedPoint": null, "elbowed": false }, { "type": "text", "id": "n2", "x": 716, "y": 500, "width": 212.16, "height": 42.5, "strokeColor": "#5A2D91", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1919944023, "version": 1, "versionNonce": 1698962145, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "echo 7 proves every\npkt_seq ≤ 7 was accepted", "originalText": "echo 7 proves every\npkt_seq ≤ 7 was accepted", "fontSize": 17, "fontFamily": 5, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "arrow", "id": "n2_a", "x": 712, "y": 512, "width": 46, "height": 30, "strokeColor": "#5A2D91", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1.5, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1670310536, "version": 1, "versionNonce": 984673983, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": { "type": 2 }, "points": [ [ 0, 0 ], [ -22, -20 ], [ -46, -30 ] ], "startArrowhead": null, "endArrowhead": "arrow", "startBinding": null, "endBinding": null, "lastCommittedPoint": null, "elbowed": false }, { "type": "text", "id": "n3", "x": 330, "y": 690, "width": 421.2, "height": 22.5, "strokeColor": "#5A2D91", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 91698625, "version": 1, "versionNonce": 1686532312, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": null, "text": "after a loss: one round trip of extra packets", "originalText": "after a loss: one round trip of extra packets", "fontSize": 18, "fontFamily": 5, "textAlign": "left", "verticalAlign": "top", "containerId": null, "lineHeight": 1.25 }, { "type": "arrow", "id": "n3_a", "x": 326, "y": 700, "width": 66, "height": 78, "strokeColor": "#5A2D91", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1.5, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "angle": 0, "seed": 1674608817, "version": 1, "versionNonce": 131122959, "isDeleted": false, "groupIds": [], "boundElements": null, "link": null, "locked": false, "roundness": { "type": 2 }, "points": [ [ 0, 0 ], [ -66, -20 ], [ -26, -78 ] ], "startArrowhead": null, "endArrowhead": "arrow", "startBinding": null, "endBinding": null, "lastCommittedPoint": null, "elbowed": false } ], "appState": { "viewBackgroundColor": "#ffffff", "gridSize": 20 }, "files": {} }