Examples

The following is a BVP equation (model) receiving a current pulse stimulus. When the stimulus is on, the BVP shows oscillatory dynamics. Otherwise, it is silent, i.e., the state converges to a fixed point.

example.isml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<is:insilico-model xmlns:is="http://www.physiome.jp/ns/insilicoml" xmlns:m="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" version="1.0" xsi:schemalocation="http://www.physiome.jp/ns/insilicoml-1.0 insilicoml.xsd">
    <is:header>
        <is:model-name>Bonhoeffer van der Pol model</is:model-name>
        <is:meta-information>
            <is:article-set>
                <is:article article-id="1" type="model-proposal">
                    <is:journal>
                        <is:journal-title>Biophysical journal</is:journal-title>
                        <is:publisher-name/>
                        <is:volume>1</is:volume>
                        <is:issue>6</is:issue>
                        <is:publication-date>
                            <is:year>1961</is:year>
                            <is:month>Jul</is:month>
                        </is:publication-date>
                    </is:journal>
                    <is:pubmed-id>19431309</is:pubmed-id>
                    <is:article-title>Impulses and Physiological States in Theoretical Models of Nerve Membrane</is:article-title>
                    <is:vernacular-article-title lang="any"/>
                    <is:pages>
                        <is:first-page>445</is:first-page>
                        <is:last-page>466</is:last-page>
                    </is:pages>
                    <is:target-model-set>
                        <is:target-model db-id="this"/>
                    </is:target-model-set>
                    <is:author-set>
                        <is:author>
                            <is:first-name>Richard</is:first-name>
                            <is:last-name>Fitzhugh</is:last-name>
                        </is:author>
                    </is:author-set>
                    <is:description/>
                </is:article>
            </is:article-set>
            <is:isml-creator-set>
                <is:creator>
                    <is:person-name>
                        <is:first-name>Yoshiyuki</is:first-name>
                        <is:middle-name/>
                        <is:last-name>Asai</is:last-name>
                    </is:person-name>
                    <is:affiliation-set>
                        <is:affiliation>
                            <is:organization>The Center for Advanced Medical Engineering and Informatics, Osaka University</is:organization>
                            <is:contact>
                                <is:address>1-1 Suita, Osaka, Japan</is:address>
                            </is:contact>
                        </is:affiliation>
                    </is:affiliation-set>
                    <is:target-model-set/>
                </is:creator>
            </is:isml-creator-set>
        </is:meta-information>
        <is:date>
            <is:created>2009-11-25T05:40:19+09:00</is:created>
            <is:last-modified>2010-03-30T03:51:02+09:00</is:last-modified>
        </is:date>
        <is:numerical-configuration>
            <is:time-discretization unit-id="11">
                <is:step>0.01</is:step>
                <is:step-min/>
                <is:step-max/>
            </is:time-discretization>
            <is:algorithm>
                <is:integration name="euler"/>
            </is:algorithm>
        </is:numerical-configuration>
        <is:description/>
    </is:header>
    <is:unit-set>
        <is:unit unit-id="0">
            <is:name>dimensionless</is:name>
        </is:unit>
        <is:unit unit-id="1">
            <is:name>metre</is:name>
        </is:unit>
        <is:unit unit-id="2">
            <is:name>kilogram</is:name>
        </is:unit>
        <is:unit unit-id="3">
            <is:name>second</is:name>
        </is:unit>
        <is:unit unit-id="4">
            <is:name>ampere</is:name>
        </is:unit>
        <is:unit unit-id="5">
            <is:name>kelvin</is:name>
        </is:unit>
        <is:unit unit-id="6">
            <is:name>mole</is:name>
        </is:unit>
        <is:unit unit-id="7">
            <is:name>candela</is:name>
        </is:unit>
        <is:unit unit-id="8">
            <is:name>radian</is:name>
        </is:unit>
        <is:unit unit-id="9">
            <is:name>meter</is:name>
            <is:element unit-id="1"/>
        </is:unit>
        <is:unit unit-id="10">
            <is:name>gram</is:name>
            <is:element unit-id="2" prefix="m"/>
        </is:unit>
        <is:unit unit-id="11">
            <is:name>milli_second</is:name>
            <is:element unit-id="3" exponent="0" prefix="m"/>
        </is:unit>
        <is:unit unit-id="12">
            <is:name>milliSecond</is:name>
            <is:element unit-id="3" exponent="0" prefix="m"/>
            <is:equivalent unit-id="11"/>
        </is:unit>
    </is:unit-set>
 
    <is:module-set>
 
        <is:module module-id="56f05090-c974-4d26-8f2e-debae430acfc" type="functional-unit">
            <is:property>
                <is:name>BVP excitation</is:name>
                <is:capsulation state="true">
                    <is:capsulated-by module-id="19586a4d-e98f-48f8-8856-df42535602dd"/>
                </is:capsulation>
                <is:template state="false"/>
                <is:keyword-set/>
                <is:track>
                    <is:involved db-id="this" date="2009-11-25T05:40:19+09:00"/>
                </is:track>
                <is:frame-coordinate/>
                <is:description/>
            </is:property>
 
            <is:port-set>
                <is:port port-id="1" direction="in">
                    <is:name>Iext</is:name>
                    <is:description>Stimulation from external source</is:description>
                </is:port>
                <is:port port-id="2" direction="in">
                    <is:name>y_i</is:name>
                    <is:description>Refractoriness of the ipsilateral side</is:description>
                </is:port>
                <is:port port-id="3" direction="out" ref-physical-quantity-id="2">
                    <is:name>x</is:name>
                    <is:description>Output excitation level of this BVP</is:description>
                </is:port>
            </is:port-set>
 
            <is:physical-quantity-set>
                <is:physical-quantity type="morphology" physical-quantity-id="1">
                    <is:name>shape</is:name>
                    <is:implementation>
                        <is:definition type="assign" sub-type="morphology"/>
                    </is:implementation>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="2" type="state">
                    <is:name>x</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="0"/>
                    </is:value-type-set>
                    <is:initial-value>
                        <is:definition type="ae" format="mathml">
                            <m:math><m:apply><m:eq/><m:ci>x</m:ci><m:cn>0.2</m:cn></m:apply></m:math>
                        </is:definition>
                    </is:initial-value>
                    <is:implementation>
                        <is:definition type="ode" sub-type="" format="mathml">
                            <m:math><m:apply><m:eq/><m:apply><m:diff/><m:bvar><m:ci>time</m:ci></m:bvar><m:ci>x</m:ci></m:apply><m:apply><m:times/><m:ci>c</m:ci><m:apply><m:plus/><m:apply><m:minus/><m:apply><m:minus/><m:ci>x</m:ci><m:apply><m:divide/><m:apply><m:times/><m:ci>x</m:ci><m:ci>x</m:ci><m:ci>x</m:ci></m:apply><m:cn>3.0</m:cn></m:apply></m:apply><m:ci>y_i</m:ci></m:apply><m:ci>Iext</m:ci></m:apply></m:apply></m:apply></m:math>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description/>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="3" type="static-parameter">
                    <is:name>c</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="0"/>
                    </is:value-type-set>
                    <is:initial-value/>
                    <is:implementation>
                        <is:definition type="ae" sub-type="" format="mathml">
                            <m:math><m:apply><m:eq/><m:ci>c</m:ci><m:cn>1.75</m:cn></m:apply></m:math>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description/>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="4" type="variable-parameter">
                    <is:name>Iext</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="0"/>
                    </is:value-type-set>
                    <is:initial-value/>
                    <is:implementation>
                        <is:definition type="assign" sub-type="port" format="reference">
                            <is:reference port-id="1"/>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description/>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="5" type="variable-parameter">
                    <is:name>y_i</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="0"/>
                    </is:value-type-set>
                    <is:initial-value/>
                    <is:implementation>
                        <is:definition type="assign" sub-type="port" format="reference">
                            <is:reference port-id="2"/>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description/>
                </is:physical-quantity>
            </is:physical-quantity-set>
            <is:morphology/>
        </is:module>
 
        <is:module module-id="ea3b84ed-3cad-4758-90d9-d53fd7fa1292" type="functional-unit">
            <is:property>
                <is:name>BVP refractoriness</is:name>
                <is:capsulation state="true">
                    <is:capsulated-by module-id="19586a4d-e98f-48f8-8856-df42535602dd"/>
                </is:capsulation>
                <is:template state="false"/>
                <is:keyword-set/>
                <is:track>
                    <is:involved db-id="this" date="2009-11-25T05:40:20+09:00"/>
                </is:track>
                <is:frame-coordinate/>
                <is:description/>
            </is:property>
 
            <is:port-set>
                <is:port port-id="1" direction="in">
                    <is:name>x_i</is:name>
                    <is:description>Excitation level of the ipsilateral side</is:description>
                </is:port>
                <is:port port-id="2" direction="out" ref-physical-quantity-id="2">
                    <is:name>y</is:name>
                    <is:description>Output refractoriness of this BVP</is:description>
                </is:port>
            </is:port-set>
 
            <is:physical-quantity-set>
                <is:physical-quantity type="morphology" physical-quantity-id="1">
                    <is:name>shape</is:name>
                    <is:implementation>
                        <is:definition type="assign" sub-type="morphology"/>
                    </is:implementation>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="2" type="state">
                    <is:name>y</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="0"/>
                    </is:value-type-set>
                    <is:initial-value>
                        <is:definition type="ae" format="mathml">
                            <m:math><m:apply><m:eq/><m:ci>y</m:ci><m:cn>0.2</m:cn></m:apply></m:math>
                        </is:definition>
                    </is:initial-value>
                    <is:implementation>
                        <is:definition type="ode" sub-type="" format="mathml">
                            <m:math><m:apply><m:eq/><m:apply><m:diff/><m:bvar><m:ci>time</m:ci></m:bvar><m:ci>y</m:ci></m:apply><m:apply><m:divide/><m:apply><m:plus/><m:apply><m:minus/><m:ci>x_i</m:ci><m:apply><m:times/><m:ci>b</m:ci><m:ci>y</m:ci></m:apply></m:apply><m:ci>a</m:ci></m:apply><m:ci>c</m:ci></m:apply></m:apply></m:math>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description/>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="3" type="static-parameter">
                    <is:name>c</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="0"/>
                    </is:value-type-set>
                    <is:initial-value/>
                    <is:implementation>
                        <is:definition type="ae" sub-type="" format="mathml">
                            <m:math><m:apply><m:eq/><m:ci>c</m:ci><m:cn>1.75</m:cn></m:apply></m:math>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description/>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="4" type="static-parameter">
                    <is:name>a</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="0"/>
                    </is:value-type-set>
                    <is:initial-value/>
                    <is:implementation>
                        <is:definition type="ae" sub-type="" format="mathml">
                            <m:math><m:apply><m:eq/><m:ci>a</m:ci><m:cn>0.7</m:cn></m:apply></m:math>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description/>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="5" type="static-parameter">
                    <is:name>b</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="0"/>
                    </is:value-type-set>
                    <is:initial-value/>
                    <is:implementation>
                        <is:definition type="ae" sub-type="" format="mathml">
                            <m:math><m:apply><m:eq/><m:ci>b</m:ci><m:cn>0.675</m:cn></m:apply></m:math>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description/>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="6" type="variable-parameter">
                    <is:name>x_i</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="0"/>
                    </is:value-type-set>
                    <is:initial-value/>
                    <is:implementation>
                        <is:definition type="assign" sub-type="port" format="reference">
                            <is:reference port-id="1"/>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description/>
                </is:physical-quantity>
            </is:physical-quantity-set>
            <is:morphology/>
        </is:module>
 
        <is:module module-id="f69720e0-d7bb-4a80-93c4-c02339d58823" type="functional-unit">
            <is:property>
                <is:name>current_pulse_generator_membrane</is:name>
                <is:capsulation state="true">
                    <is:capsulated-by module-id="8798a6fa-420c-4d01-a8b5-f6705edd3b6b"/>
                </is:capsulation>
                <is:template state="false"/>
                <is:keyword-set/>
                <is:track>
                    <is:involved db-id="this" date="2009-11-25T05:40:22+09:00"/>
                </is:track>
                <is:frame-coordinate/>
                <is:description/>
            </is:property>
 
            <is:port-set>
                <is:port port-id="1" direction="out" ref-physical-quantity-id="6">
                    <is:name>current</is:name>
                    <is:description>The current value changes from an initial value (parameter: initial_ampere)  to another value (parameter: pulse_height) at a given onset time (parameter: pulse_onset_time) and after the pulse_width return to the initial value.</is:description>
                </is:port>
            </is:port-set>
 
            <is:physical-quantity-set>
                <is:physical-quantity type="morphology" physical-quantity-id="1">
                    <is:name>shape</is:name>
                    <is:implementation>
                        <is:definition type="assign" sub-type="morphology"/>
                    </is:implementation>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="2" type="static-parameter">
                    <is:name>pulse_onset_time</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="11"/>
                    </is:value-type-set>
                    <is:initial-value/>
                    <is:implementation>
                        <is:definition type="ae" sub-type="" format="mathml">
                            <m:math><m:apply><m:eq/><m:ci>pulse_onset_time</m:ci><m:cn>20</m:cn></m:apply></m:math>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description>The time instance when the pulse takes place.</is:description>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="3" type="static-parameter">
                    <is:name>pulse_width</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="11"/>
                    </is:value-type-set>
                    <is:initial-value/>
                    <is:implementation>
                        <is:definition type="ae" sub-type="" format="mathml">
                            <m:math><m:apply><m:eq/><m:ci>pulse_width</m:ci><m:cn>40</m:cn></m:apply></m:math>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description>The pulse width in milli-second.</is:description>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="4" type="static-parameter">
                    <is:name>pulse_height</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="0"/>
                    </is:value-type-set>
                    <is:initial-value/>
                    <is:implementation>
                        <is:definition type="ae" sub-type="" format="mathml">
                            <m:math><m:apply><m:eq/><m:ci>pulse_height</m:ci><m:cn>0.7</m:cn></m:apply></m:math>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description>The pulse height.</is:description>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="5" type="static-parameter">
                    <is:name>initial_current</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="0"/>
                    </is:value-type-set>
                    <is:initial-value/>
                    <is:implementation>
                        <is:definition type="ae" sub-type="" format="mathml">
                            <m:math><m:apply><m:eq/><m:ci>initial_current</m:ci><m:cn>0</m:cn></m:apply></m:math>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description>The initial value of the stimulus current.</is:description>
                </is:physical-quantity>
                <is:physical-quantity physical-quantity-id="6" type="variable-parameter">
                    <is:name>stimulus_current</is:name>
                    <is:dimension type="scalar"/>
                    <is:value-type-set>
                        <is:value-type precision="double" unit-id="0"/>
                    </is:value-type-set>
                    <is:initial-value/>
                    <is:implementation>
                        <is:definition type="conditional" sub-type="" format="">
                            <is:case-set case-set-id="1">
                                <is:case substructure-id="1">
                                    <is:condition format="mathml">
                                        <m:math><m:apply><m:and/><m:apply><m:leq/><m:ci>pulse_onset_time</m:ci><m:ci>time</m:ci></m:apply><m:apply><m:leq/><m:ci>time</m:ci><m:apply><m:plus/><m:ci>pulse_onset_time</m:ci><m:ci>pulse_width</m:ci></m:apply></m:apply></m:apply></m:math>
                                    </is:condition>
                                    <is:definition type="ae" sub-type="" format="mathml">
                                        <m:math><m:apply><m:eq/><m:ci>stimulus_current</m:ci><m:apply><m:plus/><m:ci>initial_current</m:ci><m:ci>pulse_height</m:ci></m:apply></m:apply></m:math>
                                    </is:definition>
                                </is:case>
                                <is:case substructure-id="2">
                                    <is:definition type="ae" sub-type="" format="mathml">
                                        <m:math><m:apply><m:eq/><m:ci>stimulus_current</m:ci><m:ci>initial_current</m:ci></m:apply></m:math>
                                    </is:definition>
                                </is:case>
                            </is:case-set>
                        </is:definition>
                    </is:implementation>
                    <is:problem-condition-set/>
                    <is:description>The current value changes from an initial value (parameter: initial_ampere)  to another value (parameter: pulse_height) at a given onset time (parameter: pulse_onset_time) and after the pulse_width return to the initial value.</is:description>
                </is:physical-quantity>
            </is:physical-quantity-set>
            <is:morphology/>
        </is:module>
 
        <is:module module-id="19586a4d-e98f-48f8-8856-df42535602dd" type="capsule">
            <is:property>
                <is:name>capsule_of_BVP refractoriness</is:name>
                <is:capsulation state="false"/>
                <is:template state="false"/>
                <is:time-discretization unit-id="11">
                    <is:step>0.001</is:step>
                    <is:step-min/>
                    <is:step-max/>
                </is:time-discretization>
                <is:keyword-set/>
                <is:track>
                    <is:involved db-id="this" date="2009-11-25T05:40:24+09:00"/>
                </is:track>
                <is:frame-coordinate/>
                <is:description/>
            </is:property>
 
            <is:port-set>
                <is:port port-id="1" direction="in">
                    <is:name>Iext</is:name>
                    <is:description/>
                </is:port>
            </is:port-set>
            <is:physical-quantity-set/>
            <is:morphology/>
        </is:module>
 
        <is:module module-id="8798a6fa-420c-4d01-a8b5-f6705edd3b6b" type="capsule">
            <is:property>
                <is:name>capsule_of_current_pulse_generator_membrane</is:name>
                <is:capsulation state="false"/>
                <is:template state="false"/>
                <is:time-discretization unit-id="11">
                    <is:step>0.001</is:step>
                    <is:step-min/>
                    <is:step-max/>
                </is:time-discretization>
                <is:keyword-set/>
                <is:track>
                    <is:involved db-id="this" date="2009-11-25T05:40:24+09:00"/>
                </is:track>
                <is:frame-coordinate/>
                <is:description/>
            </is:property>
 
            <is:port-set>
                <is:port port-id="1" direction="out">
                    <is:name>current</is:name>
                    <is:description/>
                </is:port>
            </is:port-set>
            <is:physical-quantity-set/>
            <is:morphology/>
        </is:module>
    </is:module-set>
    <is:controller-set/>
 
    <is:edge-set>
        <is:edge edge-id="db47b7f8-fb31-4349-bb8a-9f2e8bd2ebb7" type="functional">
            <is:tail module-id="56f05090-c974-4d26-8f2e-debae430acfc" port-id="3"/>
            <is:head module-id="ea3b84ed-3cad-4758-90d9-d53fd7fa1292" port-id="1"/>
            <is:operation/>
            <is:description/>
        </is:edge>
        <is:edge edge-id="1a0b8e35-dd97-470a-bf9b-15b89f78aff3" type="functional">
            <is:tail module-id="ea3b84ed-3cad-4758-90d9-d53fd7fa1292" port-id="2"/>
            <is:head module-id="56f05090-c974-4d26-8f2e-debae430acfc" port-id="2"/>
            <is:operation/>
            <is:description/>
        </is:edge>
        <is:edge type="functional" edge-id="e45e8fe0-4997-433c-853c-748c51577b0f">
            <is:tail module-id="8798a6fa-420c-4d01-a8b5-f6705edd3b6b" port-id="1"/>
            <is:head module-id="19586a4d-e98f-48f8-8856-df42535602dd" port-id="1"/>
            <is:operation/>
            <is:description/>
        </is:edge>
        <is:edge edge-id="af01d720-5253-4715-b4df-dd3c61c01cc8" type="capsular">
            <is:tail module-id="56f05090-c974-4d26-8f2e-debae430acfc" port-id="0"/>
            <is:head module-id="19586a4d-e98f-48f8-8856-df42535602dd" port-id="0"/>
            <is:operation/>
            <is:description/>
        </is:edge>
        <is:edge edge-id="7647f8f1-22af-42a9-85fd-4525ce2b3d8e" type="capsular">
            <is:tail module-id="ea3b84ed-3cad-4758-90d9-d53fd7fa1292" port-id="0"/>
            <is:head module-id="19586a4d-e98f-48f8-8856-df42535602dd" port-id="0"/>
            <is:operation/>
            <is:description/>
        </is:edge>
        <is:edge edge-id="ae9a8b41-ee53-4176-865b-6ff45f31f8e1" type="forwarding">
            <is:tail module-id="19586a4d-e98f-48f8-8856-df42535602dd" port-id="1"/>
            <is:head module-id="56f05090-c974-4d26-8f2e-debae430acfc" port-id="1"/>
            <is:operation/>
            <is:description>in-ports forwarding</is:description>
        </is:edge>
        <is:edge edge-id="58d5abab-8113-4afc-bdf7-02ea4f5bd715" type="capsular">
            <is:tail module-id="f69720e0-d7bb-4a80-93c4-c02339d58823" port-id="0"/>
            <is:head module-id="8798a6fa-420c-4d01-a8b5-f6705edd3b6b" port-id="0"/>
            <is:operation/>
            <is:description/>
        </is:edge>
        <is:edge edge-id="496642d7-048d-4618-a55c-f880ca50cf23" type="forwarding">
            <is:tail module-id="f69720e0-d7bb-4a80-93c4-c02339d58823" port-id="1"/>
            <is:head module-id="8798a6fa-420c-4d01-a8b5-f6705edd3b6b" port-id="1"/>
            <is:operation/>
            <is:description>out-ports forwarding</is:description>
        </is:edge>
    </is:edge-set>
</is:insilico-model>