docs: def listBuilds(self, package, **kwargs):
          """
          Get information about all builds of a package.
  
          Calls "listBuilds" XML-RPC, with an enhancement: you can also pass a
          string here for the package name instead of the package ID number.
          See https://pagure.io/koji/issue/1209 for implementing this
          server-side.
  
          :param package: ``int`` (packageID) or ``str`` (package name).
          :returns: deferred that when fired returns a list of Build objects
                    for this package.
          """
          if isinstance(package, int):
              package_id = package
          else:
              package_data = yield self.getPackage(package)
              if package_data is None:
                  defer.returnValue([])
              package_id = package_data.id
          data = yield self.call('listBuilds', package_id, **kwargs)
          builds = []
          for bdata in data:
              build = Build.fromDict(bdata)
              build.connection = self
              builds.append(build)
          defer.returnValue(builds)