code: def add_dependency(self, dep):
      self.prepend_code_line(f'import "{dep}"')
  
file_path: m2cgen/m2cgen/interpreters/go/code_generator.py
imports: from contextlib import contextmanager
  from m2cgen.interpreters.code_generator import CodeTemplate, ImperativeCodeGenerator
label_desc: Use image node_id 4 for calling the GoCodeGenerator obj's underlying member method code with example usage: obj.add_dependency(dep) without return types