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322 lines
10 KiB
322 lines
10 KiB
import json
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from typing import Any, Dict, List, Optional
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from termcolor import colored
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from swarms.structs.base import BaseStructure
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from swarms.structs.task import Task
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class BaseWorkflow(BaseStructure):
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"""
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Base class for workflows.
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Attributes:
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task_pool (list): A list to store tasks.
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Methods:
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add(task: Task = None, tasks: List[Task] = None, *args, **kwargs):
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Adds a task or a list of tasks to the task pool.
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run():
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Abstract method to run the workflow.
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"""
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.task_pool = []
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def add(
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self,
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task: Task = None,
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tasks: List[Task] = None,
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*args,
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**kwargs,
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):
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"""
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Adds a task or a list of tasks to the task pool.
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Args:
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task (Task, optional): A single task to add. Defaults to None.
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tasks (List[Task], optional): A list of tasks to add. Defaults to None.
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Raises:
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ValueError: If neither task nor tasks are provided.
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"""
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if task:
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self.task_pool.append(task)
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elif tasks:
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self.task_pool.extend(tasks)
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else:
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raise ValueError(
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"You must provide a task or a list of tasks"
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)
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def run(self):
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"""
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Abstract method to run the workflow.
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"""
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raise NotImplementedError("You must implement this method")
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def __sequential_loop(self):
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"""
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Abstract method for the sequential loop.
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"""
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# raise NotImplementedError("You must implement this method")
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pass
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def __log(self, message: str):
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"""
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Logs a message if verbose mode is enabled.
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Args:
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message (str): The message to log.
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"""
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if self.verbose:
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print(message)
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def __str__(self):
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return f"Workflow with {len(self.task_pool)} tasks"
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def __repr__(self):
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return f"Workflow with {len(self.task_pool)} tasks"
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def reset(self) -> None:
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"""Resets the workflow by clearing the results of each task."""
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try:
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for task in self.tasks:
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task.result = None
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except Exception as error:
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print(
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colored(f"Error resetting workflow: {error}", "red"),
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)
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def get_task_results(self) -> Dict[str, Any]:
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"""
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Returns the results of each task in the workflow.
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Returns:
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Dict[str, Any]: The results of each task in the workflow
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"""
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try:
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return {
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task.description: task.result for task in self.tasks
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}
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except Exception as error:
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print(
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colored(
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f"Error getting task results: {error}", "red"
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),
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)
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def remove_task(self, task: str) -> None:
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"""Remove tasks from sequential workflow"""
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try:
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self.tasks = [
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task
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for task in self.tasks
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if task.description != task
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]
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except Exception as error:
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print(
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colored(
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f"Error removing task from workflow: {error}",
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"red",
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),
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)
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def update_task(self, task: str, **updates) -> None:
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"""
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Updates the arguments of a task in the workflow.
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Args:
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task (str): The description of the task to update.
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**updates: The updates to apply to the task.
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Raises:
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ValueError: If the task is not found in the workflow.
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Examples:
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>>> from swarms.models import OpenAIChat
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>>> from swarms.structs import SequentialWorkflow
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>>> llm = OpenAIChat(openai_api_key="")
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>>> workflow = SequentialWorkflow(max_loops=1)
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>>> workflow.add("What's the weather in miami", llm)
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>>> workflow.add("Create a report on these metrics", llm)
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>>> workflow.update_task("What's the weather in miami", max_tokens=1000)
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>>> workflow.tasks[0].kwargs
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{'max_tokens': 1000}
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"""
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try:
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for task in self.tasks:
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if task.description == task:
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task.kwargs.update(updates)
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break
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else:
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raise ValueError(
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f"Task {task} not found in workflow."
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)
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except Exception as error:
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print(
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colored(
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f"Error updating task in workflow: {error}", "red"
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),
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)
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def delete_task(self, task: str) -> None:
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"""
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Delete a task from the workflow.
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Args:
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task (str): The description of the task to delete.
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Raises:
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ValueError: If the task is not found in the workflow.
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Examples:
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>>> from swarms.models import OpenAIChat
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>>> from swarms.structs import SequentialWorkflow
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>>> llm = OpenAIChat(openai_api_key="")
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>>> workflow = SequentialWorkflow(max_loops=1)
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>>> workflow.add("What's the weather in miami", llm)
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>>> workflow.add("Create a report on these metrics", llm)
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>>> workflow.delete_task("What's the weather in miami")
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>>> workflow.tasks
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[Task(description='Create a report on these metrics', agent=Agent(llm=OpenAIChat(openai_api_key=''), max_loops=1, dashboard=False), args=[], kwargs={}, result=None, history=[])]
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"""
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try:
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for task in self.tasks:
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if task.description == task:
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self.tasks.remove(task)
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break
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else:
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raise ValueError(
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f"Task {task} not found in workflow."
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)
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except Exception as error:
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print(
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colored(
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f"Error deleting task from workflow: {error}",
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"red",
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),
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)
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def save_workflow_state(
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self,
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filepath: Optional[str] = "sequential_workflow_state.json",
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**kwargs,
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) -> None:
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"""
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Saves the workflow state to a json file.
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Args:
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filepath (str): The path to save the workflow state to.
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Examples:
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>>> from swarms.models import OpenAIChat
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>>> from swarms.structs import SequentialWorkflow
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>>> llm = OpenAIChat(openai_api_key="")
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>>> workflow = SequentialWorkflow(max_loops=1)
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>>> workflow.add("What's the weather in miami", llm)
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>>> workflow.add("Create a report on these metrics", llm)
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>>> workflow.save_workflow_state("sequential_workflow_state.json")
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"""
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try:
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filepath = filepath or self.saved_state_filepath
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with open(filepath, "w") as f:
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# Saving the state as a json for simplicuty
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state = {
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"tasks": [
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{
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"description": task.description,
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"args": task.args,
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"kwargs": task.kwargs,
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"result": task.result,
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"history": task.history,
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}
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for task in self.tasks
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],
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"max_loops": self.max_loops,
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}
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json.dump(state, f, indent=4)
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except Exception as error:
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print(
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colored(
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f"Error saving workflow state: {error}",
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"red",
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)
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)
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def add_objective_to_workflow(self, task: str, **kwargs) -> None:
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"""Adds an objective to the workflow."""
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try:
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print(
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colored(
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"""
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Adding Objective to Workflow...""",
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"green",
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attrs=["bold", "underline"],
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)
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)
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task = Task(
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description=task,
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agent=kwargs["agent"],
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args=list(kwargs["args"]),
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kwargs=kwargs["kwargs"],
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)
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self.tasks.append(task)
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except Exception as error:
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print(
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colored(
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f"Error adding objective to workflow: {error}",
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"red",
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)
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)
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def load_workflow_state(
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self, filepath: str = None, **kwargs
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) -> None:
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"""
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Loads the workflow state from a json file and restores the workflow state.
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Args:
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filepath (str): The path to load the workflow state from.
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Examples:
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>>> from swarms.models import OpenAIChat
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>>> from swarms.structs import SequentialWorkflow
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>>> llm = OpenAIChat(openai_api_key="")
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>>> workflow = SequentialWorkflow(max_loops=1)
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>>> workflow.add("What's the weather in miami", llm)
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>>> workflow.add("Create a report on these metrics", llm)
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>>> workflow.save_workflow_state("sequential_workflow_state.json")
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>>> workflow.load_workflow_state("sequential_workflow_state.json")
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"""
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try:
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filepath = filepath or self.restore_state_filepath
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with open(filepath, "r") as f:
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state = json.load(f)
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self.max_loops = state["max_loops"]
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self.tasks = []
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for task_state in state["tasks"]:
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task = Task(
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description=task_state["description"],
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agent=task_state["agent"],
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args=task_state["args"],
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kwargs=task_state["kwargs"],
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result=task_state["result"],
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history=task_state["history"],
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)
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self.tasks.append(task)
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except Exception as error:
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print(
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colored(
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f"Error loading workflow state: {error}",
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"red",
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)
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)
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