code: def from_config(cls, cp, section, outputs):
          
          tag = outputs
          outputs = set(outputs.split(VARARGS_DELIM))
          inputs = map(str.strip,
                       cp.get_opt_tag(section, 'inputs', tag).split(','))
          # get the functions for each output
          transform_functions = {}
          for var in outputs:
              # check if option can be cast as a float
              func = cp.get_opt_tag(section, var, tag)
              transform_functions[var] = func
          s = '-'.join([section, tag])
          if cp.has_option(s, 'jacobian'):
              jacobian = cp.get_opt_tag(section, 'jacobian', tag)
          else:
              jacobian = None
          return cls(inputs, outputs, transform_functions, jacobian=jacobian)
docs: Loads a CustomTransform from the given config file.
  
          Example section:
  
          .. code-block:: ini
  
              [{section}-outvar1+outvar2]
              name = custom
              inputs = inputvar1, inputvar2
              outvar1 = func1(inputs)
              outvar2 = func2(inputs)
              jacobian = func(inputs)