security_analytics.get_information_memorandum_url
*************************************************

spice.security_analytics.get_information_memorandum_url(isin: str) -> str | None

   Retrieve the URL of the information memorandum (IM) or term sheet
   for a security.

   This function returns an Odin public API URL that provides
   authenticated access to documents. The Odin API endpoint generates
   fresh presigned S3 URLs on demand, ensuring they never expire from
   the user's perspective.

   Parameters:
      **isin** (*str*) -- The ISIN of the security (e.g.,
      "INE261F08BV8"). This uniquely identifies the security for which
      details are to be retrieved.

   Returns:
      The Odin public API URL for downloading the information
      memorandum, or None if not available.
         Format:
         https://api.harmoney.in/api/instrument/12345/document/im

   Return type:
      str

   -[ Example ]-

   >>> import spice.security_analytics as sa
   >>> doc = sa.get_information_memorandum_url("INE001A08AA1")
   >>> print(doc)
   https://api.harmoney.in/api/instrument/12345/document/im
