How to use the kicost.distributors.global_vars.distributor_dict.update function in kicost

def dist_init_distributor_dict():
        distributor_dict.update(
        {
            'rs': {
                'octopart_name': 'RS Components',
                'module': 'rs',           # The directory name containing this file.
                'scrape': 'web',          # Allowable values: 'web' or 'local'.
                'label': 'RS Components', # Distributor label used in spreadsheet columns.
                'order_cols': ['part_num', 'purch', 'refs'],  # Sort-order for online orders.
                'order_delimiter': ' ',  # Delimiter for online orders.
                # Formatting for distributor header in worksheet.
                'wrk_hdr_format': {
                    'font_size': 14,
                    'font_color': 'white',
                    'bold': True,
                    'align': 'center',
                    'valign': 'vcenter',
                    'bg_color': '#FF0000'  # RS Components red.

def dist_init_distributor_dict():
        distributor_dict.update(
        {
            'tme': {
                'octopart_name': 'TME',
                'module': 'tme', # The directory name containing this file.
                'scrape': 'web',     # Allowable values: 'web' or 'local'.
                'label': 'TME',  # Distributor label used in spreadsheet columns.
                'order_cols': ['part_num', 'purch', 'refs'],  # Sort-order for online orders.
                'order_delimiter': ' ',  # Delimiter for online orders.
                # Formatting for distributor header in worksheet.
                'wrk_hdr_format': {
                    'font_size': 14,
                    'font_color': 'white',
                    'bold': True,
                    'align': 'center',
                    'valign': 'vcenter',
                    'bg_color': '#0C4DA1'  # TME blue

def dist_init_distributor_dict():
        distributor_dict.update(
        {
            'mouser': {
                'module': 'mouser',  # The directory name containing this file.
                'scrape': 'web',     # Allowable values: 'web' or 'local'.
                'label': 'Mouser',   # Distributor label used in spreadsheet columns.
                'order_cols': ['part_num', 'purch', 'refs'],  # Sort-order for online orders.
                'order_delimiter': ' ',  # Delimiter for online orders.
                # Formatting for distributor header in worksheet.
                'wrk_hdr_format': {
                    'font_size': 14,
                    'font_color': 'white',
                    'bold': True,
                    'align': 'center',
                    'valign': 'vcenter',
                    'bg_color': '#004A85'  # Mouser blue.
                },

def dist_init_distributor_dict():
        distributor_dict.update(
        {
            'digikey': {
                'octopart_name': 'Digi-Key',
                'module': 'digikey', # The directory name containing this file.
                'scrape': 'web',     # Allowable values: 'web' or 'local'.
                'label': 'Digi-Key', # Distributor label used in spreadsheet columns.
                'order_cols': ['purch', 'part_num', 'refs'],  # Sort-order for online orders.
                'order_delimiter': ',',  # Delimiter for online orders.
                # Formatting for distributor header in worksheet.
                'wrk_hdr_format': {
                    'font_size': 14,
                    'font_color': 'white',
                    'bold': True,
                    'align': 'center',
                    'valign': 'vcenter',
                    'bg_color': '#CC0000'  # Digi-Key red.

def dist_init_distributor_dict():
        distributor_dict.update({
            'mouser': {
                'octopart_name': 'Mouser',
                'module': 'mouser',  # The directory name containing this file.
                'scrape': 'web',     # Allowable values: 'web' or 'local'.
                'label': 'Mouser',   # Distributor label used in spreadsheet columns.
                'order_cols': ['part_num', 'purch', 'refs'],  # Sort-order for online orders.
                'order_delimiter': ' ',  # Delimiter for online orders.
                # Formatting for distributor header in worksheet.
                'wrk_hdr_format': {
                    'font_size': 14,
                    'font_color': 'white',
                    'bold': True,
                    'align': 'center',
                    'valign': 'vcenter',
                    'bg_color': '#004A85'  # Mouser blue.
                },

def dist_init_distributor_dict():
        distributor_dict.update({
            'arrow': {
                'octopart_name': 'Arrow Electronics, Inc.',
                'module': 'arrow',  # The directory name containing this file.
                'scrape': 'web',     # Allowable values: 'web' or 'local'.
                'label': 'Arrow',  # Distributor label used in spreadsheet columns.
                'order_cols': ['part_num', 'purch', 'refs'],  # Sort-order for online orders.
                'order_delimiter': ',',  # Delimiter for online orders.
                # Formatting for distributor header in worksheet.
                'wrk_hdr_format': {
                    'font_size': 14,
                    'font_color': 'white',
                    'bold': True,
                    'align': 'center',
                    'valign': 'vcenter',
                    'bg_color': '#000000'  # Arrow black.
                },

def dist_init_distributor_dict():
        distributor_dict.update({
            'farnell': {
                'octopart_name': 'Farnell',
                'module': 'farnell', # The directory name containing this file.
                'scrape': 'web',     # Allowable values: 'web' or 'local'.
                'label': 'Farnell',  # Distributor label used in spreadsheet columns.
                'order_cols': ['part_num', 'purch', 'refs'],  # Sort-order for online orders.
                'order_delimiter': ' ',  # Delimiter for online orders.
                # Formatting for distributor header in worksheet.
                'wrk_hdr_format': {
                    'font_size': 14,
                    'font_color': 'white',
                    'bold': True,
                    'align': 'center',
                    'valign': 'vcenter',
                    'bg_color': '#FF6600'  # Farnell/E14 orange.
                },

def dist_init_distributor_dict():
        distributor_dict.update(
        {
            'digikey': {
                'module': 'digikey', # The directory name containing this file.
                'scrape': 'web',     # Allowable values: 'web' or 'local'.
                'label': 'Digi-Key', # Distributor label used in spreadsheet columns.
                'order_cols': ['purch', 'part_num', 'refs'],  # Sort-order for online orders.
                'order_delimiter': ',',  # Delimiter for online orders.
                # Formatting for distributor header in worksheet.
                'wrk_hdr_format': {
                    'font_size': 14,
                    'font_color': 'white',
                    'bold': True,
                    'align': 'center',
                    'valign': 'vcenter',
                    'bg_color': '#CC0000'  # Digi-Key red.
                },