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import re
from pprint import pprint
class MessageComposer:
def __init__(self):
pass
def merge(self, messages) -> str:
self.messages = messages
self.merged_str = ""
for message in messages:
role = message["role"]
if role.lower() in ["system", "user"]:
role_str = "me"
elif role.lower() in ["assistant", "bot"]:
role_str = "you"
else:
role_str = "unknown"
content = message["content"]
self.merged_str += f"`{role_str}`:\n{content}\n\n"
self.merged_str += "`you`:\n"
return self.merged_str
def split(self, merged_str) -> list:
self.messages = []
self.merged_str = merged_str
pattern = r"`(?P<role>me|you)`:\n(?P<content>.*)\n+"
matches = re.finditer(pattern, self.merged_str, re.MULTILINE)
for match in matches:
role = match.group("role")
if role == "me":
role_str = "user"
elif role == "you":
role_str = "assistant"
else:
role_str = "unknown"
self.messages.append(
{
"role": role_str,
"content": match.group("content"),
}
)
return self.messages
if __name__ == "__main__":
composer = MessageComposer()
messages = [
{
"role": "system",
"content": "You are a LLM developed by OpenAI. Your name is GPT-4.",
},
{"role": "user", "content": "Hello, who are you?"},
{"role": "assistant", "content": "I am a bot."},
{"role": "user", "content": "What is your name?"},
{"role": "assistant", "content": "My name is Bing."},
{"role": "user", "content": "Tell me a joke."},
{"role": "assistant", "content": "What is a robot's favorite type of music?"},
{
"role": "user",
"content": "How many questions have I asked? Please list them.",
},
]
merged_str = composer.merge(messages)
print(merged_str)
pprint(composer.split(merged_str))
print(composer.merge(composer.split(merged_str)))
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