def member(self, member_id, only_message=True):
request_url = build_url_endpoint(<EOL>'<STR_LIT:/>'.join([self.ENDPOINT, str(member_id)])<EOL>)<EOL>request_params = {}<EOL>result = self.do_http_request(<EOL>'<STR_LIT>',<EOL>request_url,<EOL>data=request_params,<EOL>custom_header=str(self.etiquette)<EOL>)<EOL>if result.status_code == <NUM_LIT>:<EOL><INDENT>return<EOL><DEDENT>result = result.json()<EOL>return result['<STR_LIT:message>'] if only_message is True else result<EOL>
This method retrive a crossref member metadata related to the
given member_id.

args: Member ID (Integer)

Example:
    >>> from crossref.restful import Members
    >>> members = Members()
    >>> members.member(101)
    {'prefix': [{'value': '10.1024', 'public-references': False,
    'name': 'Hogrefe Publishing Group'}, {'value': '10.1027', 'public-references': False,
    'name': 'Hogrefe Publishing Group'}, {'value': '10.1026', 'public-references': False,
    'name': 'Hogrefe Publishing Group'}], 'counts': {'total-dois': 35039, 'backfile-dois': 31430,
    'current-dois': 3609}, 'coverage': {'references-backfile': 0.3601972758769989,
    'references-current': 0.019118869677186012, 'abstracts-current': 0.0,
    'update-policies-backfile': 0.0, 'orcids-current': 0.0, 'orcids-backfile': 0.0,
    'licenses-current': 0.0, 'affiliations-backfile': 0.05685650557279587,
    'licenses-backfile': 0.0, 'update-policies-current': 0.0, 'resource-links-current': 0.0,
    'resource-links-backfile': 0.0, 'award-numbers-backfile': 0.0, 'abstracts-backfile': 0.0,
    'funders-current': 0.0, 'funders-backfile': 0.0, 'affiliations-current': 0.15710723400115967,
    'award-numbers-current': 0.0}, 'flags': {'deposits-orcids-backfile': False,
    'deposits-references-backfile': True, 'deposits-licenses-current': False, 'deposits': True,
    'deposits-abstracts-current': False, 'deposits-award-numbers-current': False,
    'deposits-articles': True, 'deposits-resource-links-backfile': False,
    'deposits-funders-current': False, 'deposits-award-numbers-backfile': False,
    'deposits-references-current': True, 'deposits-abstracts-backfile': False,
    'deposits-funders-backfile': False, 'deposits-update-policies-current': False,
    'deposits-orcids-current': False, 'deposits-licenses-backfile': False,
    'deposits-affiliations-backfile': True, 'deposits-update-policies-backfile': False,
    'deposits-resource-links-current': False, 'deposits-affiliations-current': True},
    'names': ['Hogrefe Publishing Group'], 'breakdowns': {'dois-by-issued-year': 
    [[2003, 2329], [2004, 2264], [2002, 2211], [2005, 2204], [2006, 2158], [2007, 2121], [2016, 1954],
    [2008, 1884], [2015, 1838], [2012, 1827], [2013, 1805], [2014, 1796], [2009, 1760], [2010, 1718],
    [2011, 1681], [2001, 1479], [2000, 1477], [1999, 1267], [2017, 767], [1997, 164], [1996, 140],
    [1998, 138], [1995, 103], [1994, 11], [1993, 11], [0, 1]]},
    'location': 'Langgass-Strasse 76 Berne CH-3000 Switzerland', 'prefixes': ['10.1024', '10.1027',
    '10.1026'], 'last-status-check-time': 1496034132646, 'id': 101, 'tokens': ['hogrefe', 'publishing',
    'group'], 'primary-name': 'Hogrefe Publishing Group'}