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'''
This file is part of PM4Py (More Info: https://pm4py.fit.fraunhofer.de).
PM4Py is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
PM4Py is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with PM4Py. If not, see <https://www.gnu.org/licenses/>.
'''
from enum import Enum
from pm4py.util import exec_utils
from typing import Optional, Dict, Any
import base64
from pm4py.util import constants
class Parameters(Enum):
API_URL = "api_url"
API_KEY = "api_key"
OPENAI_MODEL = "openai_model"
IMAGE_PATH = "image_path"
def encode_image(image_path):
with open(image_path, "rb") as image_file:
return base64.b64encode(image_file.read()).decode('utf-8')
def apply(prompt: str, parameters: Optional[Dict[Any, Any]] = None) -> str:
import requests
if parameters is None:
parameters = {}
image_path = exec_utils.get_param_value(Parameters.IMAGE_PATH, parameters, None)
api_key = exec_utils.get_param_value(Parameters.API_KEY, parameters, constants.OPENAI_API_KEY)
api_url = exec_utils.get_param_value(Parameters.API_URL, parameters, None)
simple_content_specification = image_path is None
if api_url is None:
api_url = constants.OPENAI_API_URL
else:
if not api_url.endswith("/"):
api_url += "/"
model = exec_utils.get_param_value(Parameters.OPENAI_MODEL, parameters,
constants.OPENAI_DEFAULT_MODEL if image_path is None else constants.OPENAI_DEFAULT_VISION_MODEL)
headers = {
"Content-Type": "application/json",
"Authorization": f"Bearer {api_key}"
}
messages = []
if simple_content_specification:
messages.append({"role": "user", "content": prompt})
else:
messages.append({"role": "user", "content": [{"type": "text", "text": prompt}]})
payload = {
"model": model
}
if image_path is not None:
base64_image = encode_image(image_path)
messages[0]["content"].append({"type": "image_url", "image_url": {"url": f"data:image/jpeg;base64,{base64_image} "}})
payload["max_tokens"] = 4096
payload["messages"] = messages
response = requests.post(api_url+"chat/completions", headers=headers, json=payload).json()
if "error" in response:
# raise an exception when the request fails, with the provided message
raise Exception(response["error"]["message"])
return response["choices"][0]["message"]["content"]
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