sol_Bo8des9o/openzeppelin-contracts @ 56806bb295b409145547c8bd5e48f2b2b137de09

Nicolás Venturo 1b79b536cd Roles.add and remove now require pre-conditions on the account. (#1421)		7 lat temu
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roles	e7aa8dedbc Turn off blank-lines Solium rule (#1284)	7 lat temu
Roles.sol	1b79b536cd Roles.add and remove now require pre-conditions on the account. (#1421)	7 lat temu