code: def process_alias_create_namespace(namespace):
      
      namespace = filter_alias_create_namespace(namespace)
      _validate_alias_name(namespace.alias_name)
      _validate_alias_command(namespace.alias_command)
      _validate_alias_command_level(namespace.alias_name, namespace.alias_command)
      _validate_pos_args_syntax(namespace.alias_name, namespace.alias_command)
docs: Validate input arguments when the user invokes 'az alias create'.
  
      Args:
          namespace: argparse namespace object.