| Add relaxation data to the data nodes. 
    Parameters:
        data_type(str) - The relaxation data type (one of 'NOE', 'R1', or 'R2').sample_cond_list_id(str) - The sample conditions list ID number.sample_cond_list_label(str) - The sample conditions list label.temp_calibration(str) - The temperature calibration method.temp_control(str) - The temperature control method.peak_intensity_type(str) - The peak intensity type - one of 'height' or 'volume'.frq(float) - The spectrometer proton frequency, in Hz.details(None or str) - The details tag.assembly_atom_ids(list of int) - The assembly atom ID numbers.entity_assembly_ids(list of int) - The entity assembly ID numbers.entity_ids(int) - The entity ID numbers.res_nums(list of int) - The residue number list.res_names(list of str) - The residue name list.atom_names(list of str) - The atom name list.atom_types(list of str) - The atom types as IUPAC element abbreviations.isotope(list of int) - The isotope type list, ie 15 for '15N'.assembly_atom_ids_2(list of int) - The assembly atom ID numbers.  This is for the second atom used 
          in the heteronuclear NOE.entity_assembly_ids_2(list of int) - The entity assembly ID numbers.  This is for the second atom used
          in the heteronuclear NOE.entity_ids_2(int) - The entity ID numbers.  This is for the second atom used in the 
          heteronuclear NOE.res_nums_2(list of int) - The residue number list.  This is for the second atom used in the
          heteronuclear NOE.res_names_2(list of str) - The residue name list.  This is for the second atom used in the 
          heteronuclear NOE.atom_names_2(list of str) - The atom name list.  This is for the second atom used in the 
          heteronuclear NOE.atom_types_2(list of str) - The atom types as IUPAC element abbreviations.  This is for the 
          second atom used in the heteronuclear NOE.isotope_2(list of int) - The isotope type list, ie 1 for '1H'.  This is for the second 
          atom used in the heteronuclear NOE.data(list of float) - The relaxation data.errors(list of float) - The errors associated with the relaxation data.Overrides:
        Relaxation_v2_1.add
     |