class_docstr: Stochastic gradient descent (SGD) optimizer.
class_docstr_tok: ["Stochastic","gradient","descent","(","SGD",")","optimizer","."]
code: def init(self, weights):
      return None
  
file_path: trax/trax/optimizers/base.py
imports: from trax import fastmath
  from trax.fastmath import numpy
label_desc: Use image node_id 1 for calling the SGD obj's underlying member method code with example usage: obj.init(weights) and returns: None