def METHOD_NAME(self):
    """Allows to connect fieldA input to the operator.
    Field or fields container with only one field
    is expected
    Parameters
    ----------
    my_fieldA : Field or FieldsContainer
    Examples
    --------
    >>> from ansys.dpf import core as dpf
    >>> op = dpf.operators.math.centroid()
    >>> op.inputs.fieldA.connect(my_fieldA)
    >>> # or
    >>> op.inputs.fieldA(my_fieldA)
    """
    return self._fieldA