docstr: Call factor.method_name.
docstr_tok: ["Call","factor.method_name","."]
code: def _get_method(factor, method_name, array_args, num_args):
      """Call factor.method_name."""
      return getattr(factor, method_name)(**array_args, **num_args)
  
imports: import math
  import geomstats.backend
  import geomstats.errors
  from geomstats.geometry.complex_manifold import ComplexManifold
  from geomstats.geometry.complex_riemannian_metric import ComplexRiemannianMetric
  from geomstats.geometry.manifold import Manifold
  from geomstats.geometry.riemannian_metric import RiemannianMetric
  from geomstats.vectorization import get_batch_shape
label_desc: Use image node_id 7 for calling the _IterateOverFactorsMixins obj's underlying member method code with example usage: obj._get_method(factor, method_name, array_args, num_args) and returns: getattr