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⚡️ Speed up function get_template_variables by 43% #71

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⚡️ Speed up function get_template_variables by 43% #71

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13 changes: 9 additions & 4 deletions guardrails/utils/templating_utils.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,3 @@
import collections
from string import Template
from typing import List

Expand All @@ -7,6 +6,12 @@ def get_template_variables(template: str) -> List[str]:
if hasattr(Template, "get_identifiers"):
return Template(template).get_identifiers() # type: ignore
else:
d = collections.defaultdict(str)
Template(template).safe_substitute(d)
return list(d.keys())
pattern = Template.pattern
variables = []
seen = set()
for m in pattern.finditer(template):
named = m.group("named") or m.group("braced")
if named is not None and named not in seen:
variables.append(named)
seen.add(named)
return variables