MissingPointerError: Token "smartylighting" does not exist.

[KhudaDad414]

Assume I have this JSON schema:

channels:
  'smartylighting/streetlights/1/0/event/{streetlightId}/lighting/measured':
    description: The topic on which measured values may be produced and consumed.
    parameters:
      streetlightId:
        description: The ID of the streetlight.
        schema:
          type: string

now if I try to parse the parameters using $refs.get('#/channels/smartylighting/streetlights/1/0/event/{streetlightId}/lighting/measured/parameters') I will get the above error. Is there a way to handle cases that token(path) itself contains '/' ?