How to use the loguru.logger.level function in loguru

def test_bind_and_add_level(writer, using_bound):
    logger_bound = logger.bind()
    logger.add(writer, format="{level.name} {message}")

    if using_bound:
        logger_bound.level("bar", 15)
    else:
        logger.level("bar", 15)

    logger.log("bar", "root")
    logger_bound.log("bar", "bound")

    assert writer.read() == "bar root\nbar bound\n"

def test_get_level():
    level = ("lvl", 11, "", "[!]")
    logger.level(*level)
    assert logger.level("lvl") == level

def test_add_invalid_level_name(level_name):
    with pytest.raises(TypeError):
        logger.level(level_name, 11)

def emit(self, record):
        # Get corresponding Loguru level if it exists
        try:
            level = logger.level(record.levelname).name
        except ValueError:
            level = record.levelno

        # Find caller from where originated the logged message
        frame, depth = logging.currentframe(), 2
        while frame.f_code.co_filename == logging.__file__:
            frame = frame.f_back
            depth += 1

        logger.bind(name=record.name).opt(depth=depth, exception=record.exc_info).log(
            level, record.getMessage()
        )

"""Retrieve APD's traffic fatality reports."""
    ctx.obj = {**ctx.params}
    ctx.auto_envvar_prefix = 'VZ'

    # Configure logger.
    INITIAL_LOG_LEVEL = logging.WARNING
    LOG_FORMAT_COMPACT = "{message}"
    LOG_FORMAT_VERBOSE = "{time:YYYY-MM-DDTHH:mm:ssZZ} {name}:{line:<4} {message}"
    log_level = max(INITIAL_LOG_LEVEL - verbose * 10, 0)
    log_format = LOG_FORMAT_VERBOSE if log_level < logging.INFO else LOG_FORMAT_COMPACT

    # Remove any predefined logger.
    logger.remove()

    # Set the log colors.
    logger.level('ERROR', color='')
    logger.level('WARNING', color='')
    logger.level('SUCCESS', color='')
    logger.level('INFO', color='')
    logger.level('DEBUG', color='')
    logger.level('TRACE', color='')

    # Add the logger.
    logger.add(sys.stderr, format=log_format, level=log_level, colorize=True)

    # Prepare the command.
    command = Retrieve(ctx.params, ctx.obj)
    command.execute()

# to avoid circular import
from .core.apparatus import Apparatus
from .core.protocol import Protocol
from .components import *
from .core.experiment import Experiment

from . import zoo
from . import plugins

# deactivate logging (see https://loguru.readthedocs.io/en/stable/overview.html#suitable-for-scripts-and-libraries)
from loguru import logger

logger.remove()
logger.level("SUCCESS", icon="✅")
logger.level("ERROR", icon="❌")
logger.level("TRACE", icon="🔍")

# to avoid circular import
from .core.apparatus import Apparatus
from .core.protocol import Protocol
from .components import *
from .core.experiment import Experiment

from . import zoo
from . import plugins

# deactivate logging (see https://loguru.readthedocs.io/en/stable/overview.html#suitable-for-scripts-and-libraries)
from loguru import logger

logger.remove()
logger.level("SUCCESS", icon="✅")
logger.level("ERROR", icon="❌")
logger.level("TRACE", icon="🔍")

from loguru import logger
from tomlkit.toml_document import TOMLDocument
from tomlkit.toml_file import TOMLFile

from .__about__ import __author__, __title__

CONFIG_BASE_PATH = Path(appdirs.user_config_dir(__title__, __author__))

LOG_BASE_PATH = Path(appdirs.user_data_dir(__title__, __author__))
LOG_FORMAT = '[{time:YYYY-MM-DD HH:mm:ss}] {message}'
LOG_DEBUG_FORMAT = LOG_FORMAT

logger.level('NORMAL', no=25, color="")
logger.level('INFO', no=20, color="")
logger.level('ACTION_FAILURE', no=16, color="")
logger.level('ACTION_SUCCESS', no=15, color="")

VERBOSITY_LOG_LEVELS = {
	0: 50,
	1: 40,
	2: 30,
	3: 25,
	4: 20,
	5: 16,
	6: 15,
	7: 10,
	8: 5,
}


def read_config_file(username=None):
	config_path = CONFIG_BASE_PATH / (username or '') / 'google-music-scripts.toml'

import appdirs
from loguru import logger
from tomlkit.toml_document import TOMLDocument
from tomlkit.toml_file import TOMLFile

from .__about__ import __author__, __title__

CONFIG_BASE_PATH = Path(appdirs.user_config_dir(__title__, __author__))

LOG_BASE_PATH = Path(appdirs.user_data_dir(__title__, __author__))
LOG_FORMAT = '[{time:YYYY-MM-DD HH:mm:ss}] {message}'
LOG_DEBUG_FORMAT = LOG_FORMAT

logger.level('NORMAL', no=25, color="")
logger.level('INFO', no=20, color="")
logger.level('ACTION_FAILURE', no=16, color="")
logger.level('ACTION_SUCCESS', no=15, color="")

VERBOSITY_LOG_LEVELS = {
	0: 50,
	1: 40,
	2: 30,
	3: 25,
	4: 20,
	5: 16,
	6: 15,
	7: 10,
	8: 5,
}