parameters: (self, key)
return_statement: return self.get(key).string_value
docstring: Get a parameter value as a string.
docstring_summary: Get a parameter value as a string.
docstring_tokens: Get a parameter value as a string .
function: def get_string(self, key):
          '''Get a parameter value as a string.'''
          return self.get(key).string_value
function_tokens: def get_string ( self , key ) : return self . get ( key ) . string_value