add freqao backend machinery, user interface, documentation

freqtrade/commands/freqai_commands.py

@@ -0,0 +1,24 @@
+import logging
+from typing import Any, Dict
+
+from freqtrade import constants
+from freqtrade.configuration import setup_utils_configuration
+from freqtrade.enums import RunMode
+from freqtrade.exceptions import OperationalException
+from freqtrade.misc import round_coin_value
+
+
+logger = logging.getLogger(__name__)
+
+def start_training(args: Dict[str, Any]) -> None:
+    """
+    Train a model for predicting signals
+    :param args: Cli args from Arguments()
+    :return: None
+    """
+    from freqtrade.freqai.training import Training
+
+    config = setup_utils_configuration(args, RunMode.FREQAI)
+
+    training = Training(config)
+    training.start()