def firstMemberSchema(self, schemas):
for schema in schemas:<EOL><INDENT>if schema.hasColumn(self):<EOL><INDENT>return schema<EOL><DEDENT><DEDENT>return self.schema()<EOL>
Returns the first schema within the list that this column is a member
of.

:param      schemas | [<orb.TableSchema>, ..]

:return     <orb.TableSchema> || None