class_docstr: Gain effect processor
code: def process(self, frames, eod=False):
      return numpy.multiply(frames, self.gain), eod
  
file_path: TimeSide/timeside/plugins/fx/gain.py
imports: from timeside.core import Processor, implements, interfacedoc
  from timeside.core.api import IEffect
  import numpy
label_desc: Use image node_id 5 for calling the Gain obj's underlying member method code with example usage: obj.process(frames, eod) and returns: numpy,  eod