services.drawio.svg

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                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 16px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
                                n
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                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
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                                n
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                    n
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                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                test()
                            </div>
                        </div>
                    </div>
                </foreignObject>
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                    test()
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                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                initialize()
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                    initialize()
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                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                start()
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                        </div>
                    </div>
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                    start()
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            <switch>
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                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                stop()
                            </div>
                        </div>
                    </div>
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                    stop()
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            </switch>
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        <g transform="translate(-0.5 -0.5)">
            <switch>
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                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 98px; height: 1px; padding-top: 417px; margin-left: 142px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                finalize()
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                        </div>
                    </div>
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                    finalize()
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            <switch>
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                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                shutdown()
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                        </div>
                    </div>
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                    shutdown()
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                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; font-weight: bold; white-space: nowrap;">
                                Experiment
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                    Experiment
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                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                validate()
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                    validate()
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                                Pretest
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                    Pretest
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                                ready?
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                    ready?
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                                    Experiment
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                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 857px; margin-left: 511px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 16px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
                                n
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="511" y="862" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="16px" text-anchor="middle">
                    n
                </text>
            </switch>
        </g>
        <path d="M 498 769 L 548 809 L 498 849 L 448 809 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 90px; height: 1px; padding-top: 807px; margin-left: 453px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; font-style: italic; white-space: normal; overflow-wrap: normal;">
                                supports initialize?
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="498" y="811" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="14px" text-anchor="middle" font-style="italic">
                    supports init...
                </text>
            </switch>
        </g>
        <path d="M 764 939 L 764 469 L 511 469 L 507.12 469" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 500.12 469 L 507.12 465.5 L 507.12 472.5 Z" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <path d="M 708 809 L 755.88 809" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 762.88 809 L 755.88 812.5 L 755.88 805.5 Z" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <rect x="608" y="789" width="100" height="40" fill="#dae8fc" stroke="#6c8ebf" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 98px; height: 1px; padding-top: 809px; margin-left: 609px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                initialize()
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="658" y="813" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="14px" text-anchor="middle">
                    initialize()
                </text>
            </switch>
        </g>
        <path d="M 548 939 L 599.88 939" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 606.88 939 L 599.88 942.5 L 599.88 935.5 Z" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 922px; margin-left: 548px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 16px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
                                y
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="548" y="927" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="16px" text-anchor="middle">
                    y
                </text>
            </switch>
        </g>
        <path d="M 498 979 L 498 1018.88" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 498 1025.88 L 494.5 1018.88 L 501.5 1018.88 Z" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 987px; margin-left: 511px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 16px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
                                n
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="511" y="992" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="16px" text-anchor="middle">
                    n
                </text>
            </switch>
        </g>
        <path d="M 498 899 L 548 939 L 498 979 L 448 939 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 90px; height: 1px; padding-top: 937px; margin-left: 453px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; font-style: italic; white-space: normal; overflow-wrap: normal;">
                                supports finalize?
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="498" y="941" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="14px" text-anchor="middle" font-style="italic">
                    supports fina...
                </text>
            </switch>
        </g>
        <path d="M 708 939 L 755.88 939" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 762.88 939 L 755.88 942.5 L 755.88 935.5 Z" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <rect x="608" y="919" width="100" height="40" fill="#dae8fc" stroke="#6c8ebf" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 98px; height: 1px; padding-top: 939px; margin-left: 609px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                finalize()
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="658" y="943" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="14px" text-anchor="middle">
                    finalize()
                </text>
            </switch>
        </g>
        <path d="M 468 1027 L 528 1027 L 548 1057 L 528 1087 L 468 1087 L 448 1057 Z" fill="#f8cecc" stroke="#b85450" stroke-miterlimit="10" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 90px; height: 1px; padding-top: 1055px; margin-left: 453px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                raise
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="498" y="1059" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="14px" text-anchor="middle">
                    raise
                </text>
            </switch>
        </g>
        <path d="M 391 1092 L 391 2" fill="none" stroke="#301818" stroke-width="2" stroke-miterlimit="10" stroke-dasharray="2 6" pointer-events="stroke"/>
        <path d="M 382 766 L 1 766" fill="none" stroke="#301818" stroke-width="2" stroke-miterlimit="10" stroke-dasharray="2 6" pointer-events="stroke"/>
        <path d="M 126 849 L 126 864.88" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 126 871.88 L 122.5 864.88 L 129.5 864.88 Z" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <path d="M 126 873 L 176 913 L 126 953 L 76 913 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 90px; height: 1px; padding-top: 911px; margin-left: 81px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; font-style: italic; white-space: normal; overflow-wrap: normal;">
                                supports start?
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="126" y="915" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="14px" text-anchor="middle" font-style="italic">
                    supports star...
                </text>
            </switch>
        </g>
        <path d="M 176 913 L 187 913 L 197.88 913" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 204.88 913 L 197.88 916.5 L 197.88 909.5 Z" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 897px; margin-left: 176px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 16px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
                                y
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="176" y="902" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="16px" text-anchor="middle">
                    y
                </text>
            </switch>
        </g>
        <path d="M 256 933 L 256 962 L 135.12 962" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 128.12 962 L 135.12 958.5 L 135.12 965.5 Z" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <rect x="206" y="893" width="100" height="40" fill="#dae8fc" stroke="#6c8ebf" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 98px; height: 1px; padding-top: 913px; margin-left: 207px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                start()
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="256" y="917" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="14px" text-anchor="middle">
                    start()
                </text>
            </switch>
        </g>
        <path d="M 126 978 L 176 1018 L 126 1058 L 76 1018 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 90px; height: 1px; padding-top: 1016px; margin-left: 81px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; font-style: italic; white-space: normal; overflow-wrap: normal;">
                                supports stop?
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="126" y="1020" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="14px" text-anchor="middle" font-style="italic">
                    supports stop?
                </text>
            </switch>
        </g>
        <path d="M 176 1018 L 196 1018 L 186 1018 L 197.88 1018" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 204.88 1018 L 197.88 1021.5 L 197.88 1014.5 Z" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 1003px; margin-left: 176px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 16px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; background-color: rgb(255, 255, 255); white-space: nowrap;">
                                y
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="176" y="1008" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="16px" text-anchor="middle">
                    y
                </text>
            </switch>
        </g>
        <path d="M 256 1038 L 256 1062 L 135.12 1062" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 128.12 1062 L 135.12 1058.5 L 135.12 1065.5 Z" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <rect x="206" y="998" width="100" height="40" fill="#dae8fc" stroke="#6c8ebf" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 98px; height: 1px; padding-top: 1018px; margin-left: 207px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                stop()
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="256" y="1022" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="14px" text-anchor="middle">
                    stop()
                </text>
            </switch>
        </g>
        <path d="M 498 449 L 498 490.88" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
        <path d="M 498 497.88 L 494.5 490.88 L 501.5 490.88 Z" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/>
        <rect x="561" y="0" width="80" height="30" fill="none" stroke="none" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 15px; margin-left: 601px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; font-weight: bold; white-space: nowrap;">
                                start()
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="601" y="19" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="14px" text-anchor="middle" font-weight="bold">
                    start()
                </text>
            </switch>
        </g>
        <rect x="56" y="785" width="270" height="50" fill="none" stroke="none" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 810px; margin-left: 191px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; font-weight: bold; white-space: nowrap;">
                                protocol check before each call
                                <br/>
                                <span style="font-weight: 400;">
                                    only test() is mandatory
                                </span>
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="191" y="814" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="14px" text-anchor="middle" font-weight="bold">
                    protocol check before each call...
                </text>
            </switch>
        </g>
        <path d="M 639 63 L 699 63 L 719 93 L 699 123 L 639 123 L 619 93 Z" fill="#e1d5e7" stroke="#9673a6" stroke-miterlimit="10" pointer-events="all"/>
        <g transform="translate(-0.5 -0.5)">
            <switch>
                <foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;">
                    <div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 90px; height: 1px; padding-top: 91px; margin-left: 624px;">
                        <div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;">
                            <div style="display: inline-block; font-size: 14px; font-family: Verdana; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">
                                return
                            </div>
                        </div>
                    </div>
                </foreignObject>
                <text x="669" y="95" fill="rgb(0, 0, 0)" font-family="Verdana" font-size="14px" text-anchor="middle">
                    return
                </text>
            </switch>
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        <rect x="516" y="420" width="170" height="30" fill="none" stroke="none" pointer-events="all"/>
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    <switch>
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