// Extensions for filtering enumerated files/directories.
// Extensions for reading/writing text lines.
public static TextWriter CreateFileText(this IFileSystemOperator fileSystemOperator, string filePath, bool overwrite = true)
{
var writerStream = fileSystemOperator.CreateFile(filePath, overwrite);
var writerTextStream = new StreamWriter(writerStream); // Will close the stream, so ok!
return(writerTextStream);
}