package Ġorg . kode in . db . level db ĊĊ Ċ public Ġexpect Ġclass ĠStack Trace Ġ{ ĊĠĠĠ Ġpublic Ġfun Ġwrite ( on : ĠAppend able ) ĊĠĠĠ Ġpublic Ġcompanion Ġobject Ġ{ ĊĠĠĠĠĠĠĠ Ġpublic Ġfun Ġcurrent (): ĠStack Trace ĊĠĠĠ Ġ} Ċ } Ċ Ċ public Ġexpect Ġfun Ġ< T > Ġnew Weak HashSet (): ĠMutable Set < T > Ċ