curl --request POST \
  --url https://api.example.com/api/v2/projects/{project_id}/completions/statistics/{prompt_template_id} \
  --header 'Content-Type: application/json' \
  --data '
{
  "to_date": "<string>",
  "from_date": "<string>"
}
'

{
  "summary_info": {}
}