[DEVX-210]: YAML based workflow creation

[sainivedh]

Why

• Enable users to create workflow with a simple YAML config script.
• Also helps user to export existing workflow as a YAML

How

• Developed based on Dali team yaml2workflow library
• Design Doc - YAML Workflow Creation in SDK

Flow Chart of Node Creation

Workflow Create

The Workflow Create function allows you to create a new workflow, specified by a yaml config file.

# Note: CLARIFAI_PAT must be set as env variable.
from clarifai.client.app import App
app = App(app_id="app_id", user_id="user_id")
workflow = app.create_workflow(config_filepath="config.yml")

Workflow Export

The Workflow Export function allows you to export an existing workflow from Clarifai and save it to a local file for future use.

# Note: CLARIFAI_PAT must be set as env variable.
from clarifai.client.workflow import Workflow
workflow = Workflow("https://clarifai.com/clarifai/main/workflows/Demographics")
workflow.export('demographics_workflow.yml')

What

• Added Workflow Validate, Export, Create functionalities
• Added list module versions
• Added display of workflow graph

workflow:
  id: test-wf-prompter
  nodes:
    - id: prompter
      model:
          model_id: prompter
          model_type_id: prompter
          description: 'Sentiment Analysis'
          output_info:
            params:
              prompt_template: 'Classify sentiment between postive and negative {data.text.raw}'

    - id: llm
      model:
          user_id: openai
          model_id: GPT-3_5-turbo
          app_id: chat-completion

      node_inputs:
        - node_id: prompter

Tests

• Reused the same test cases as in yaml2workflow for export, create, validate
• Create covers multiple scenarios as multi branch/multi node/custom model/public model...

[sanjaychelliah]

LGTM

[ghost]

Looks good, nice work!