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Merge pull request #34 from kayac/load-empty

Fix loading empty files.

Merge pull request #30 from kayac/remove-tfstate

remove tfstate package

Merge pull request #27 from kayac/tfstate-lookup-v0.0.11

tfstate-lookup v0.0.11

go mod tidy

Merge pull request #23 from kayac/json_encode

add json_escape function

tfstate-lookup v0.0.7

fix documents & variable name.

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