curl --request POST \
  --url https://api.simplex.sh/select_dropdown_option \
  --header 'Content-Type: multipart/form-data' \
  --header 'X-API-Key: <api-key>' \
  --form 'element_description=<string>' \
  --form session_id=3c90c3cc-0d44-4b50-8888-8dd25736052a \
  --form override_fail_state=false

{
  "succeeded": true
}