upd model example

pinky/test/config_examples/model.config

 --- !pinky.model.Model
-data_generator: !pinky.data.OnTheFlyData
+hyperparameter_optimizer: !pinky.optimize.Optimizer
+  learning_rate: [0.001, 1.0e-05, 0.0001]
+  n_calls: 50
+  path_best: winner
+data_generator: !pinky.data.GFSwarmData
   fn_stations: stations.pf
-  gf_engine: !pf.LocalEngine
-    store_superdirs: [/data/stores]
-    store_dirs: []
-    default_store_id: qplayground_total_4_mr_full
   n_sources: 30
   sample_length: 5.
   onset_phase: p
@@ -18,6 +18,45 @@ data_generator: !pinky.data.OnTheFlyData
   quantity: velocity
   noise: !pinky.data.WhiteNoise
     level: 1E-8
+  swarm: !swarm.source_region.Swarm
+    geometry: !swarm.source_region.CuboidSourceGeometry
+      center_lon: 12.45
+      center_lat: 50.214
+      center_depth: 10000
+      azimuth: 170
+      dip: 80.0
+      tilt: 0.0
+      n: 10
+      length: 3000.0
+      depth: 3000.0
+      thickness: 200.0
+    timing: !swarm.source_region.RandomTiming
+      tmin: 0
+      tmax: 86400.0
+    mechanisms: !swarm.source_region.FocalDistribution
+      n: 100
+      base_source: !pf.DCSource
+        elevation: 0.0
+        depth: 0
+        time: 1970-01-01 00:00:00
+        stf_mode: post
+        magnitude: 6.0
+        strike: 170
+        dip: 80
+        rake: -30
+      variation: 5
+    magnitudes: !swarm.source_region.GutenbergRichterDiscrete
+      mag_min: 0.08
+      mag_max: 3.4
+      a: 1
+      b: 0.5
+      increment: 0.1
+      scaling: 1.0
+      normalize: true
+    engine: !pf.LocalEngine
+      store_superdirs: [/data/stores]
+      store_dirs: []
+      default_store_id: qplayground_total_4_mr_full
 dropout_rate: 0.1
-batch_size: 10
+batch_size: 2
 auto_clear: true