@property<EOL><INDENT>def is_pinned(self):<EOL><DEDENT>
specifiers = self.specifier<EOL>return (len(specifiers) == <NUM_LIT:1> and<EOL>next(iter(specifiers)).operator in {'<STR_LIT>', '<STR_LIT>'})<EOL>
Return whether I am pinned to an exact version.

        For example, some-package==1.2 is pinned; some-package>1.2 is not.