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Preview for Mira context #114

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Preview for Mira context #114

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29dcfc9
preview for mira context
satchelbaldwin Mar 19, 2024
2c3cdf3
refactor
satchelbaldwin Mar 19, 2024
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16 changes: 16 additions & 0 deletions src/askem_beaker/contexts/mira/context.py
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Original file line number Diff line number Diff line change
Expand Up @@ -119,6 +119,22 @@ async def post_execute(self, message):
},
)

async def generate_preview(self):
"""
Preview renders of mira models.
"""
code_block = self.get_code(
"visualize_mira_models",
{
"model_vars": self.loaded_models,
},
)
result = await self.beaker_kernel.evaluate(code_block)
models = result.get("return", None)
return {
"Mira Models": models,
}

async def auto_context(self):
from .lib.utils import query_examples

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26 changes: 26 additions & 0 deletions src/askem_beaker/contexts/mira/procedures/python3/visualize_mira_models.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,26 @@
import base64

from mira.metamodel import TemplateModel
from mira.modeling.viz import GraphicalModel


def __visualize_model(name: str, model: TemplateModel) -> str:
graphical_model = GraphicalModel.from_template_model(model)
filename = f"_preview_{name}.png"
graphical_model.write(filename, format="png")
with open(filename, "rb") as f:
data = f.read()
enc = base64.b64encode(bytes(data))
return enc.decode("utf-8")
Comment on lines +11 to +14
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This will actually leave files in the "jupyter" user's home directory, since subkernels currently actually run as a normal kernel in the same environment. We probably don't want to create clutter.
We should probably delete these files after we read them, or write to a IOBuffer so the contents are all in memory.



__state = locals()
__models = {}

for model in {{model_vars}}:
model: str
__models[model] = {"text/plain": repr(__state[model]), "image/png": __visualize_model(model, __state[model])}

del __state
Comment on lines +17 to +24
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By using jinja templating, I think we can clean this up to something like the following.
(Note: I haven't really tested this, so don't take this as a solved solution.)
As you can see, instead of generating and reading from a locals() dict, we are just generating code that access the variables directly.

Suggested change
__state = locals()
__models = {}
for model in {{model_vars}}:
model: str
__models[model] = {"text/plain": repr(__state[model]), "image/png": __visualize_model(model, __state[model])}
del __state
__models = {
{% for model_var in model_vars %}
"{{model_var}}": {"text/plain": repr({{model_var}}), "image/png": __visualize_model("{{model_var}}", {{model_var}})}
{% endfor %}
}


__models