GET
    /vouchers/pdfs/outstanding
  
  curl \
 --request GET 'https://api.gb.enjovia.app/vouchers/pdfs/outstanding' \
 --header "Authorization: Bearer $ACCESS_TOKEN" \
 --header "Account-ID: string"
    curl \
 --request GET 'https://api.gb.enjovia.app/vouchers/pdfs/outstanding' \
 --header "Authorization: Bearer $ACCESS_TOKEN" \
 --header "Account-ID: string"