question: expert : declare a count of items to be written to an array column or a column whose parent is an array . concode_field_sep byte[] MAGIC_1 concode_elem_sep ColumnFileMetaData metaData concode_elem_sep long size concode_elem_sep byte[] MAGIC_0 concode_elem_sep ColumnOutputBuffer[] columns concode_elem_sep long rowCount concode_elem_sep int columnCount concode_elem_sep byte[] MAGIC concode_field_sep void writeHeader concode_elem_sep void writeTo concode_elem_sep void writeTo concode_elem_sep long[] computeStarts concode_elem_sep void startRow concode_elem_sep void endRow concode_elem_sep void checkColumns concode_elem_sep int getColumnCount concode_elem_sep void writeRow concode_elem_sep void incrementSize concode_elem_sep ColumnFileMetaData getMetaData concode_elem_sep void writeValue concode_elem_sep long sizeEstimate
target: void function ( int arg0 , int arg1 ) { columns [ arg1 ] . writeLength ( arg0 ) ; }