def env():
if cij.ssh.env():<EOL><INDENT>cij.err("<STR_LIT>")<EOL>return <NUM_LIT:1><EOL><DEDENT>board = cij.env_to_dict(PREFIX, REQUIRED)   <EOL>if board is None:<EOL><INDENT>cij.err("<STR_LIT>")<EOL>return <NUM_LIT:1><EOL><DEDENT>board["<STR_LIT>"] = "<STR_LIT:_>".join([board[r] for r in REQUIRED[:-<NUM_LIT:1>]])<EOL>board["<STR_LIT>"] = "<STR_LIT:->".join([board["<STR_LIT>"], board["<STR_LIT>"]])<EOL>cij.env_export(PREFIX, EXPORTED, board)     <EOL>return <NUM_LIT:0><EOL>
Verify BOARD variables and construct exported variables