How to use the cfgrib.bindings function in cfgrib

    def from_sample_name(cls, sample_name, product_kind=eccodes.CODES_PRODUCT_GRIB, **kwargs):
        codes_id = eccodes.codes_new_from_samples(sample_name, product_kind)
        return cls(codes_id=codes_id, **kwargs)

def __setitem__(self, item, value):
        # type: (str, T.Any) -> None
        try:
            return self.message_set(item, value)
        except eccodes.GribInternalError as ex:
            if self.errors == 'ignore':
                pass
            elif self.errors == 'raise':
                raise KeyError("failed to set key %r to %r" % (item, value))
            else:
                if isinstance(ex, eccodes.ReadOnlyError):
                    # Very noisy error when trying to set computed keys
                    pass
                else:
                    LOG.warning("failed to set key %r to %r", item, value)

def message_grib_keys(self, namespace=None):
        # type: (str) -> T.Generator[str, None, None]
        iterator = eccodes.codes_keys_iterator_new(self.codes_id, namespace=namespace)
        while eccodes.codes_keys_iterator_next(iterator):
            yield eccodes.codes_keys_iterator_get_name(iterator)
        eccodes.codes_keys_iterator_delete(iterator)

def message_grib_keys(self, namespace=None):
        # type: (str) -> T.Generator[str, None, None]
        iterator = eccodes.codes_keys_iterator_new(self.codes_id, namespace=namespace)
        while eccodes.codes_keys_iterator_next(iterator):
            yield eccodes.codes_keys_iterator_get_name(iterator)
        eccodes.codes_keys_iterator_delete(iterator)

def message_grib_keys(self, namespace=None):
        # type: (str) -> T.Generator[str, None, None]
        iterator = eccodes.codes_keys_iterator_new(self.codes_id, namespace=namespace)
        while eccodes.codes_keys_iterator_next(iterator):
            yield eccodes.codes_keys_iterator_get_name(iterator)
        eccodes.codes_keys_iterator_delete(iterator)

def __setitem__(self, item, value):
        # type: (str, T.Any) -> None
        try:
            return self.message_set(item, value)
        except eccodes.GribInternalError as ex:
            if self.errors == 'ignore':
                pass
            elif self.errors == 'raise':
                raise KeyError("failed to set key %r to %r" % (item, value))
            else:
                if isinstance(ex, eccodes.ReadOnlyError):
                    # Very noisy error when trying to set computed keys
                    pass
                else:
                    LOG.warning("failed to set key %r to %r", item, value)

import io
import logging
import os
import pickle
import typing as T

import attr
import numpy as np

# select between using the external ecCodes bindings or the internal implementation
if os.environ.get('CFGRIB_USE_EXTERNAL_ECCODES_BINDINGS'):
    import eccodes
else:
    from . import bindings as eccodes

eccodes_version = eccodes.codes_get_api_version()

LOG = logging.getLogger(__name__)
_MARKER = object()

#
# No explicit support for MULTI-FIELD at Message level.
#
# eccodes.codes_grib_multi_support_on()


@attr.attrs()
class Message(collections.abc.MutableMapping):
    """Dictionary-line interface to access Message headers."""

    codes_id = attr.attrib()
    encoding = attr.attrib(default='ascii', type=str)