parameters: (variable_def)
return_statement: return Variable(variable_def=variable_def)
docstring: Returns a `Variable` object created from `variable_def`.
docstring_summary: Returns a `Variable` object created from `variable_def`.
docstring_tokens: Returns a Variable object created from variable_def .
function: def from_proto(variable_def):
      """Returns a `Variable` object created from `variable_def`."""
      return Variable(variable_def=variable_def)
function_tokens: def from_proto ( variable_def ) : return Variable ( variable_def = variable_def )