@prefix this: <http://purl.org/np/RAFtxYEdbUO2lFhc6zmrhdZCdd5waBfch0e75o2xGI-84> .
@prefix sub: <http://purl.org/np/RAFtxYEdbUO2lFhc6zmrhdZCdd5waBfch0e75o2xGI-84#> .
@prefix bpmn: <https://www.omg.org/spec/BPMN/> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix ns1: <http://purl.org/dc/elements/1.1/> .
@prefix p-plan: <http://purl.org/net/p-plan#> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix npx: <http://purl.org/nanopub/x/> .

sub:Head {
  this: np:hasAssertion sub:assertion;
    np:hasProvenance sub:provenance;
    np:hasPublicationInfo sub:pubInfo;
    a np:Nanopublication .
}

sub:assertion {
  sub:db_uri a p-plan:Variable .
  
  sub:step ns1:description """#!/usr/bin/env python3

import click

@click.command()
@click.option('--db_uri')
def retrieve_data(db_uri):
    '''
    Retrieves data from the database
    '''
    pass


if __name__ == '__main__':
    retrieve_data()""";
    a p-plan:Step, bpmn:scriptTask .
}

sub:provenance {
  sub:assertion prov:generatedAtTime "2020-04-22T15:43:35.458001"^^xsd:dateTime;
    prov:wasAttributedTo sub:experimentScientist;
    prov:wasDerivedFrom sub:experiment .
}

sub:pubInfo {
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCSJ70ftpVCIM5G9QnTMwUS8ojFt9qhgtzICAQqKjaY2z0SJ5va1Y4Za/9pv+8qkuW7ox4CkOT8GQO9WmelNsuN62n56mC4fTw5+o6vLyBrK1Pb/tkwEX/lwwXdeH+Gw4P5x6jhYRf0+wYzdHueAdDNkU9bu7tc2S5TRqDBTeGHYQIDAQAB";
    npx:hasSignature "VJM8gDKM7v8J1Bb+7TosRmNMM9kfIz71sdh9piXie69q2JkoD9tIjU0nPhV9mOb+Iij+Di3xBuft+Kj7QDkDWNGji5q2pE8vgvWNwr/F7rm6p7ByEH7kNBjDhUkJqN1C8939Ieba2Qj25RQgcotlBkYdCiXUc0Nl42ENeFYrqJM=";
    npx:hasSignatureTarget this: .
  
  this: prov:generatedAtTime "2020-04-22T15:43:35.458001"^^xsd:dateTime;
    prov:wasAttributedTo sub:DrBob .
}