httk.atomistic.models.formula.anonymous
=======================================

.. py:module:: httk.atomistic.models.formula.anonymous

.. autoapi-nested-parse::

   The canonical anonymous chemical-formula value class.



Classes
-------

.. autoapisummary::

   httk.atomistic.models.formula.anonymous.AnonymousFormula


Module Contents
---------------

.. py:class:: AnonymousFormula(backend, **hints)

   Bases: :py:obj:`httk.atomistic.models.formula.backend.ChemicalFormulaBackend`, :py:obj:`str`


   Store a strictly canonical OPTIMADE anonymous chemical formula.

   :param formula: The canonical anonymous formula text.


   .. py:property:: is_anonymous
      :type: bool


      Return whether the formula uses anonymous labels.


   .. py:property:: amounts
      :type: tuple[tuple[str, fractions.Fraction], Ellipsis]


      Return the anonymous coefficients as exact amounts.