code: function getFileContents(remoteFilename, options) {
              const getOptions = merge(baseOptions, options || {});
              getOptions.format = getOptions.format || "binary";
              if (["binary", "text"].indexOf(getOptions.format) < 0) {
                  throw new Error("Unknown format: " + getOptions.format);
              }
              return getOptions.format === "text"
                  ? getFile.getFileContentsString(remoteFilename, getOptions)
                  : getFile.getFileContentsBuffer(remoteFilename, getOptions);
          }
docs: Get the contents of a remote file
  @param {String} remoteFilename The file to fetch
  @param {OptionsWithFormat=} options Options for the request
  @memberof ClientInterface
  @returns {Promise.<Buffer|String>} A promise that resolves with the contents of the remote file
  @example
  // Fetching data:
  const buff = await client.getFileContents("/image.png");
  // Fetching text:
  const txt = await client.getFileContents("/list.txt", { format: "text" });