Module template 

template — template-rendering.md reference implementation.

render_template(template, params): replace {param} placeholders with bound values (strict). {result.*} / {item.*} are resolved by a different layer and are out-of-scope Failures here.

Normative points:

• placeholder = { + one-or-more non-brace chars + } (no escaping).
• single left-to-right pass; substituted text is not re-processed.
• strict missing-key: unbound param → Failure (never empty string).
• null param → Failure (present = key in params && value != null).
• stringify follows Python str(value): bool → True/False, float → py_float_repr.

Structs

TemplateFailure

Enums

TemplateFailureCode

Functions

render_template

Render {param} placeholders strictly.

resolve_partial

resolvePartial — explain/dry-run variant: substitutes {param}, leaves {result.*} and unbound params in place (template-rendering.md §3.3).