Allow passing k/v pairs to a custom J2 template

[vachillo]

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Is your feature request related to a problem? Please describe.
I have custom J2 templates that i would like to use, but i have no way to pass custom k/v pairs without overriding the entire class

Describe the solution you'd like
I want to pass a dict to a Tool/Engine that use J2 templates that i can use to pass in k/v pairs to render to my custom template

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

[collindutter]

This should be implemented through the following:

1. Add task: self to BaseTask.full_context.
2. Add context: self.full_context as arguments to all Task uses of J2.render.

[collindutter]

@vachillo I know this is quite old but can you expand on the ask here? Can you provide a code snippet that shows what you're trying to do?

[vachillo]

if i have some kv pairs that i want to pass into the system prompt, i need to override the prompt to support that.

This should be implemented through the following:

Add task: self to BaseTask.full_context.
Add context: self.full_context as arguments to all Task uses of J2.render.

It looks like this is implemented, I'm not 100% sure if its exhaustive though. There is still a question of user-friendly-ness when trying to use the J2 class and overriding the different template generator classes.

[collindutter]

I don't think this ever got implemented, certainly not universally.

Why do you need to override any template generator classes? Can you provide an example of what you're trying to do?