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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def validate(self):
 """Validate that the FoldedContextField is correctly representable."""

        if not isinstance(self.fold_scope_location, FoldScopeLocation):
            raise TypeError(u'Expected FoldScopeLocation fold_scope_location, got: {} {}'.format(
                type(self.fold_scope_location), self.fold_scope_location))

        if self.fold_scope_location.field is None:
            raise ValueError(u'Expected FoldScopeLocation at a field, but got: {}'
                             .format(self.fold_scope_location))

        if self.fold_scope_location.field == COUNT_META_FIELD_NAME:
            if not GraphQLInt.is_same_type(self.field_type):
                raise TypeError(u'Expected the _x_count meta-field to be of GraphQLInt type, but '
                                u'encountered type {} instead: {}'
                                .format(self.field_type, self.fold_scope_location))
        else:
            if not isinstance(self.field_type, GraphQLList):
                raise ValueError(u'Invalid value of "field_type" for a field that is not '
                                 u'a meta-field, expected a list type but got: {} {}'
                                 .format(self.field_type, self.fold_scope_location))

            inner_type = strip_non_null_from_type(self.field_type.of_type)
            if isinstance(inner_type, GraphQLList):
                raise GraphQLCompilationError(
                    u'Outputting list-valued fields in a @fold context is currently not supported: '
                    u'{} {}'.format(self.fold_scope_location, self.field_type.of_type))