@staticmethod
def add_args(parser):
    'Add task-specific arguments to the parser.'
    parser.add_argument('data', help='colon separated path to data directories list,                             will be iterated upon during epochs in round-robin manner;                             however, valid and test data are always in the first directory to                             avoid the need for repeating them in all directories')
    parser.add_argument('-s', '--source-lang', default=None, metavar='SRC', help='source language')
    parser.add_argument('-t', '--target-lang', default=None, metavar='TARGET', help='target language')
    parser.add_argument('--load-alignments', action='store_true', help='load the binarized alignments')
    parser.add_argument('--left-pad-source', default='True', type=str, metavar='BOOL', help='pad the source on the left')
    parser.add_argument('--left-pad-target', default='False', type=str, metavar='BOOL', help='pad the target on the left')
    parser.add_argument('--max-source-positions', default=1024, type=int, metavar='N', help='max number of tokens in the source sequence')
    parser.add_argument('--max-target-positions', default=1024, type=int, metavar='N', help='max number of tokens in the target sequence')
    parser.add_argument('--upsample-primary', default=1, type=int, help='amount to upsample primary dataset')
    parser.add_argument('--truncate-source', action='store_true', default=False, help='truncate source to max-source-positions')
    parser.add_argument('--num-batch-buckets', default=0, type=int, metavar='N', help='if >0, then bucket source and target lengths into N buckets and pad accordingly; this is useful on TPUs to minimize the number of compilations')
    parser.add_argument('--eval-bleu', action='store_true', help='evaluation with BLEU scores')
    parser.add_argument('--eval-bleu-detok', type=str, default='space', help='detokenize before computing BLEU (e.g., "moses"); required if using --eval-bleu; use "space" to disable detokenization; see fairseq.data.encoders for other options')
    parser.add_argument('--eval-bleu-detok-args', type=str, metavar='JSON', help='args for building the tokenizer, if needed')
    parser.add_argument('--eval-tokenized-bleu', action='store_true', default=False, help='compute tokenized BLEU instead of sacrebleu')
    parser.add_argument('--eval-bleu-remove-bpe', nargs='?', const='@@ ', default=None, help='remove BPE before computing BLEU')
    parser.add_argument('--eval-bleu-args', type=str, metavar='JSON', help='generation args for BLUE scoring, e.g., \'{"beam": 4, "lenpen": 0.6}\'')
    parser.add_argument('--eval-bleu-print-samples', action='store_true', help='print sample generations during validation')
Add task-specific arguments to the parser.
@staticmethod
def add_args(parser):
    
    parser.add_argument('data', help='colon separated path to data directories list,                             will be iterated upon during epochs in round-robin manner;                             however, valid and test data are always in the first directory to                             avoid the need for repeating them in all directories')
    parser.add_argument('-s', '--source-lang', default=None, metavar='SRC', help='source language')
    parser.add_argument('-t', '--target-lang', default=None, metavar='TARGET', help='target language')
    parser.add_argument('--load-alignments', action='store_true', help='load the binarized alignments')
    parser.add_argument('--left-pad-source', default='True', type=str, metavar='BOOL', help='pad the source on the left')
    parser.add_argument('--left-pad-target', default='False', type=str, metavar='BOOL', help='pad the target on the left')
    parser.add_argument('--max-source-positions', default=1024, type=int, metavar='N', help='max number of tokens in the source sequence')
    parser.add_argument('--max-target-positions', default=1024, type=int, metavar='N', help='max number of tokens in the target sequence')
    parser.add_argument('--upsample-primary', default=1, type=int, help='amount to upsample primary dataset')
    parser.add_argument('--truncate-source', action='store_true', default=False, help='truncate source to max-source-positions')
    parser.add_argument('--num-batch-buckets', default=0, type=int, metavar='N', help='if >0, then bucket source and target lengths into N buckets and pad accordingly; this is useful on TPUs to minimize the number of compilations')
    parser.add_argument('--eval-bleu', action='store_true', help='evaluation with BLEU scores')
    parser.add_argument('--eval-bleu-detok', type=str, default='space', help='detokenize before computing BLEU (e.g., "moses"); required if using --eval-bleu; use "space" to disable detokenization; see fairseq.data.encoders for other options')
    parser.add_argument('--eval-bleu-detok-args', type=str, metavar='JSON', help='args for building the tokenizer, if needed')
    parser.add_argument('--eval-tokenized-bleu', action='store_true', default=False, help='compute tokenized BLEU instead of sacrebleu')
    parser.add_argument('--eval-bleu-remove-bpe', nargs='?', const='@@ ', default=None, help='remove BPE before computing BLEU')
    parser.add_argument('--eval-bleu-args', type=str, metavar='JSON', help='generation args for BLUE scoring, e.g., \'{"beam": 4, "lenpen": 0.6}\)
    parser.add_argument('--eval-bleu-print-samples', action='store_true', help='print sample generations during validation')