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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def from_yaml(data):
 """ Interpolate the provided data and return a dict. Currently, this is used to reinterpolate the `molecule.yml` inside an Ansible playbook. If there were any interpolation errors, they would have been found and raised earlier. :return: dict """

    molecule_env_file = os.environ['MOLECULE_ENV_FILE']

    env = os.environ.copy()
    env = config.set_env_from_file(env, molecule_env_file)

    i = interpolation.Interpolator(interpolation.TemplateWithDefaults, env)
    interpolated_data = i.interpolate(data)

    return util.safe_load(interpolated_data)