# Static Identifiers

<table><thead><tr><th width="321">CONSTANTS</th><th>EXPLANATION</th></tr></thead><tbody><tr><td><a href="static-identifiers/this-me">THIS/ME</a></td><td>Refers to the Current Node</td></tr><tr><td><a href="static-identifiers/current_series">CURRENT_SERIES</a>*</td><td>Refers to the Current series label</td></tr><tr><td><a href="static-identifiers/current_series_id">CURRENT_SERIES_ID</a>*</td><td>Refers to the ID of the current series</td></tr><tr><td><a href="static-identifiers/current_period_index">CURRENT_PERIOD_INDEX (or) CPI</a></td><td>Returns the value of the period selected.</td></tr><tr><td><a href="static-identifiers/current_node_values">CURRENT_NODE_VALUE</a></td><td>Returns the value of the current node.</td></tr><tr><td><a href="static-identifiers/ds.series">DS.SERIES</a></td><td>Returns the value from the data series for the specified node value</td></tr></tbody></table>