File is not `gofumpt`-ed (gofumpt)

unnecessary trailing newline (whitespace)

type assertion must be checked (forcetypeassert)

Pop returns generic interface (T) of type param any (ireturn)

PopSafe returns generic interface (T) of type param any (ireturn)

Peek returns generic interface (T) of type param any (ireturn)

return with no blank line before (nlreturn)

return with no blank line before (nlreturn)

Function TestStack missing the call to method parallel

Function TestStack missing the call to method parallel in the test run

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