@backblaze-labs/b2-sdk - v0.4.0
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    Variable BUCKET_INFO_KEY_PATTERNConst

    BUCKET_INFO_KEY_PATTERN: "^[A-Za-z0-9._`~!#$%^&*'|+-]+$"

    BucketInfo keys must match this regular-expression source. B2 accepts letters, digits, and these characters: . _ ~ ! # $ % ^ & * ' | + - plus the backtick.