def _contributor_role_setter(self, role: str, name: str) -> None:
'''
set the name for a particular role, adding a new contributor
in the process if none exists for that role.
see composer.setter property for an example
'''
c = None
result = self.getContributorsByRole(role)
if result is not None:
c = result[0]
else:
c = Contributor()
c.role = role
self.contributors.append(c)
c.name = name
def composer(self, value):
c = Contributor()
c.name = value
c.role = 'composer'
self.contributors.append(c)
def composer(self, value):
c = Contributor()
c.name = value
c.role = 'composer'
self.contributors.append(c)