def node_field_stats(self, nodes=None):
parts = ['<STR_LIT>', '<STR_LIT>', '<STR_LIT>']<EOL>if nodes:<EOL><INDENT>paths = ['<STR_LIT>', "<STR_LIT:U+002C>".join(nodes), '<STR_LIT>', '<STR_LIT>']<EOL><DEDENT>path = make_path(*parts)<EOL>return self.conn._send_request('<STR_LIT:GET>', path)<EOL>
Retrieve field stats per node(s) or cluster wide
:ref:`nodes info <es-guide-reference-api-admin-cluster-nodes-stats>` API allows to retrieve one or more (or all) 
the cluster nodes info about field data memory usage