docs: async def prover_get_credentials(wallet_handle: int,
                                   filter_json: str) -> str:
      """
      Gets human readable credentials according to the filter.
      If filter is NULL, then all credentials are returned.
      Credentials can be filtered by tags created during saving of credential.
  
      NOTE: This method is deprecated because immediately returns all fetched credentials.
      Use <prover_search_credentials> to fetch records by small batches.
  
      :param wallet_handle: wallet handler (created by open_wallet).
      :param filter_json: filter for credentials
          {
              "schema_id": string, (Optional)
              "schema_issuer_did": string, (Optional)
              "schema_name": string, (Optional)
              "schema_version": string, (Optional)
              "issuer_did": string, (Optional)
              "cred_def_id": string, (Optional)
          }
      :return:  credentials json
       [{
           "referent": string, // cred_id in the wallet
           "attrs": {"key1":"raw_value1", "key2":"raw_value2"},
           "schema_id": string,
           "cred_def_id": string,
           "rev_reg_id": Optional<string>,
           "cred_rev_id": Optional<string>
       }]
      """
  
      logger = logging.getLogger(__name__)
      logger.debug("prover_get_credentials: >>> wallet_handle: %r, filter_json: %r",
                   wallet_handle,
                   filter_json)
  
      if not hasattr(prover_get_credentials, "cb"):
          logger.debug("prover_get_credentials: Creating callback")
          prover_get_credentials.cb = create_cb(CFUNCTYPE(None, c_int32, c_int32, c_char_p))
  
      c_wallet_handle = c_int32(wallet_handle)
      c_filter_json = c_char_p(filter_json.encode('utf-8'))
  
      credentials_json = await do_call('indy_prover_get_credentials',
                                       c_wallet_handle,
                                       c_filter_json,
                                       prover_get_credentials.cb)
  
      res = credentials_json.decode()
      logger.debug("prover_get_credentials: <<< res: %r", res)
      return res