import { BufWriterSync } from "https://deno.land/x/frugal@0.3.0/dep/std/io.ts";
return new BufWriterSync unless writer is BufWriterSync
Parameters
writer: WriterSync
asserts.ts
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colors.ts
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datetime.ts
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fs.ts
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http.ts
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io.ts
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log.ts
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mock.ts
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path.ts
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streams.ts
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