@pexdoc.pcontracts.contract(wave=Waveform)<EOL>def cosh(wave):
return _operation(wave, "<STR_LIT>", "<STR_LIT>", np.cosh)<EOL>
r"""
    Return the hyperbolic cosine of a waveform's dependent variable vector.

    :param wave: Waveform
    :type  wave: :py:class:`peng.eng.Waveform`

    :rtype: :py:class:`peng.eng.Waveform`

    .. [[[cog cog.out(exobj_eng.get_sphinx_autodoc()) ]]]
    .. Auto-generated exceptions documentation for
    .. peng.wave_functions.cosh

    :raises: RuntimeError (Argument \`wave\` is not valid)

    .. [[[end]]]