def get_hacr_channels(db=None, gps=None, connection=None,<EOL>**conectkwargs):
<EOL>if connection is None:<EOL><INDENT>if gps is None:<EOL><INDENT>gps = from_gps('<STR_LIT>')<EOL><DEDENT>if db is None:<EOL><INDENT>db = get_database_names(gps, gps)[<NUM_LIT:0>]<EOL><DEDENT>connection = connect(db=db, **conectkwargs)<EOL><DEDENT>out = query("<STR_LIT>")<EOL>return [r[<NUM_LIT:0>] for r in out]<EOL>
Return the names of all channels present in the given HACR database