def is_command_context_registered(self, cmd_name):
        return self._contexts_registry.is_registered(cmd_name)

    #--------------------
    # Command Options API
    #--------------------
Tests:
dataset/ETHPy150Open cournape/Bento/bento/commands/contexts.py/GlobalContext.is_command_context_registered--crossover with--dataset/ETHPy150Open typesupply/woffTools/Lib/woffTools/tools/validate.py/_testTableDirectoryDecompressedLength