parameters: (self, head, body)
docstring: Sends a command to all server nodes.
  
          Sending command to a server node will cause that server node to invoke
          ``KVStoreServer.controller`` to execute the command.
  
          This function returns after the command has been executed on all server
          nodes.
  
          Parameters
          ----------
          head : int
              the head of the command.
          body : str
              the body of the command.
docstring_summary: Sends a command to all server nodes.
docstring_tokens: Sends a command to all server nodes .
function: def _send_command_to_servers(self, head, body):
          """Sends a command to all server nodes.
  
          Sending command to a server node will cause that server node to invoke
          ``KVStoreServer.controller`` to execute the command.
  
          This function returns after the command has been executed on all server
          nodes.
  
          Parameters
          ----------
          head : int
              the head of the command.
          body : str
              the body of the command.
          """
          check_call(_LIB.MXKVStoreSendCommmandToServers(
              self.handle, mx_uint(head), c_str(body)))
function_tokens: def _send_command_to_servers ( self , head , body ) : check_call ( _LIB . MXKVStoreSendCommmandToServers ( self . handle , mx_uint ( head ) , c_str ( body ) ) )